21319650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 64415520

約数和(自身を除く): 43095870

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 59, 66, 73, 75, 90, 99, 110, 118, 146, 150, 165, 177, 198, 219, 225, 275, 295, 330, 354, 365, 438, 450, 495, 531, 550, 590, 649, 657, 730, 803, 825, 885, 990, 1062, 1095, 1298, 1314, 1475, 1606, 1650, 1770, 1825, 1947, 2190, 2409, 2475, 2655, 2950, 3245, 3285, 3650, 3894, 4015, 4307, 4425, 4818, 4950, 5310, 5475, 5841, 6490, 6570, 7227, 8030, 8614, 8850, 9735, 10950, 11682, 12045, 12921, 13275, 14454, 16225, 16425, 19470, 20075, 21535, 24090, 25842, 26550, 29205, 32450, 32850, 36135, 38763, 40150, 43070, 47377, 48675, 58410, 60225, 64605, 72270, 77526, 94754, 97350, 107675, 120450, 129210, 142131, 146025, 180675, 193815, 215350, 236885, 284262, 292050, 323025, 361350, 387630, 426393, 473770, 646050, 710655, 852786, 969075, 1184425, 1421310, 1938150, 2131965, 2368850, 3553275, 4263930, 7106550, 10659825, 21319650]

約数ペア:

[(1, 21319650), (2, 10659825), (3, 7106550), (5, 4263930), (6, 3553275), (9, 2368850), (10, 2131965), (11, 1938150), (15, 1421310), (18, 1184425), (22, 969075), (25, 852786), (30, 710655), (33, 646050), (45, 473770), (50, 426393), (55, 387630), (59, 361350), (66, 323025), (73, 292050), (75, 284262), (90, 236885), (99, 215350), (110, 193815), (118, 180675), (146, 146025), (150, 142131), (165, 129210), (177, 120450), (198, 107675), (219, 97350), (225, 94754), (275, 77526), (295, 72270), (330, 64605), (354, 60225), (365, 58410), (438, 48675), (450, 47377), (495, 43070), (531, 40150), (550, 38763), (590, 36135), (649, 32850), (657, 32450), (730, 29205), (803, 26550), (825, 25842), (885, 24090), (990, 21535), (1062, 20075), (1095, 19470), (1298, 16425), (1314, 16225), (1475, 14454), (1606, 13275), (1650, 12921), (1770, 12045), (1825, 11682), (1947, 10950), (2190, 9735), (2409, 8850), (2475, 8614), (2655, 8030), (2950, 7227), (3245, 6570), (3285, 6490), (3650, 5841), (3894, 5475), (4015, 5310), (4307, 4950), (4425, 4818)]