21000658250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:746

約数の個数: 192

約数和(自身を含む): 47152160640

約数和(自身を除く): 26151502390

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 73, 110, 125, 130, 143, 146, 169, 250, 275, 286, 325, 338, 365, 550, 619, 650, 715, 730, 803, 845, 949, 1238, 1375, 1430, 1606, 1625, 1690, 1825, 1859, 1898, 2750, 3095, 3250, 3575, 3650, 3718, 4015, 4225, 4745, 6190, 6809, 7150, 8030, 8047, 8450, 9125, 9295, 9490, 10439, 12337, 13618, 15475, 16094, 17875, 18250, 18590, 20075, 20878, 21125, 23725, 24674, 30950, 34045, 35750, 40150, 40235, 42250, 45187, 46475, 47450, 52195, 61685, 68090, 77375, 80470, 88517, 90374, 92950, 100375, 104390, 104611, 118625, 123370, 135707, 154750, 170225, 177034, 200750, 201175, 209222, 225935, 232375, 237250, 260975, 271414, 308425, 340450, 402350, 442585, 451870, 464750, 497057, 521950, 523055, 587431, 616850, 678535, 851125, 885170, 994114, 1005875, 1046110, 1129675, 1150721, 1174862, 1304875, 1357070, 1542125, 1702250, 2011750, 2212925, 2259350, 2301442, 2485285, 2609750, 2615275, 2937155, 3084250, 3392675, 4425850, 4970570, 5230550, 5648375, 5753605, 5874310, 6461741, 6785350, 7636603, 11064625, 11296750, 11507210, 12426425, 12923482, 13076375, 14685775, 15273206, 16963375, 22129250, 24852850, 26152750, 28768025, 29371550, 32308705, 33926750, 38183015, 57536050, 62132125, 64617410, 73428875, 76366030, 84002633, 124264250, 143840125, 146857750, 161543525, 168005266, 190915075, 287680250, 323087050, 381830150, 420013165, 807717625, 840026330, 954575375, 1615435250, 1909150750, 2100065825, 4200131650, 10500329125, 21000658250]

約数ペア:

[(1, 21000658250), (2, 10500329125), (5, 4200131650), (10, 2100065825), (11, 1909150750), (13, 1615435250), (22, 954575375), (25, 840026330), (26, 807717625), (50, 420013165), (55, 381830150), (65, 323087050), (73, 287680250), (110, 190915075), (125, 168005266), (130, 161543525), (143, 146857750), (146, 143840125), (169, 124264250), (250, 84002633), (275, 76366030), (286, 73428875), (325, 64617410), (338, 62132125), (365, 57536050), (550, 38183015), (619, 33926750), (650, 32308705), (715, 29371550), (730, 28768025), (803, 26152750), (845, 24852850), (949, 22129250), (1238, 16963375), (1375, 15273206), (1430, 14685775), (1606, 13076375), (1625, 12923482), (1690, 12426425), (1825, 11507210), (1859, 11296750), (1898, 11064625), (2750, 7636603), (3095, 6785350), (3250, 6461741), (3575, 5874310), (3650, 5753605), (3718, 5648375), (4015, 5230550), (4225, 4970570), (4745, 4425850), (6190, 3392675), (6809, 3084250), (7150, 2937155), (8030, 2615275), (8047, 2609750), (8450, 2485285), (9125, 2301442), (9295, 2259350), (9490, 2212925), (10439, 2011750), (12337, 1702250), (13618, 1542125), (15475, 1357070), (16094, 1304875), (17875, 1174862), (18250, 1150721), (18590, 1129675), (20075, 1046110), (20878, 1005875), (21125, 994114), (23725, 885170), (24674, 851125), (30950, 678535), (34045, 616850), (35750, 587431), (40150, 523055), (40235, 521950), (42250, 497057), (45187, 464750), (46475, 451870), (47450, 442585), (52195, 402350), (61685, 340450), (68090, 308425), (77375, 271414), (80470, 260975), (88517, 237250), (90374, 232375), (92950, 225935), (100375, 209222), (104390, 201175), (104611, 200750), (118625, 177034), (123370, 170225), (135707, 154750)]