21817400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 56782080

約数和(自身を除く): 34964680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 47, 50, 55, 88, 94, 100, 110, 188, 200, 211, 220, 235, 275, 376, 422, 440, 470, 517, 550, 844, 940, 1034, 1055, 1100, 1175, 1688, 1880, 2068, 2110, 2200, 2321, 2350, 2585, 4136, 4220, 4642, 4700, 5170, 5275, 8440, 9284, 9400, 9917, 10340, 10550, 11605, 12925, 18568, 19834, 20680, 21100, 23210, 25850, 39668, 42200, 46420, 49585, 51700, 58025, 79336, 92840, 99170, 103400, 109087, 116050, 198340, 218174, 232100, 247925, 396680, 436348, 464200, 495850, 545435, 872696, 991700, 1090870, 1983400, 2181740, 2727175, 4363480, 5454350, 10908700, 21817400]

約数ペア:

[(1, 21817400), (2, 10908700), (4, 5454350), (5, 4363480), (8, 2727175), (10, 2181740), (11, 1983400), (20, 1090870), (22, 991700), (25, 872696), (40, 545435), (44, 495850), (47, 464200), (50, 436348), (55, 396680), (88, 247925), (94, 232100), (100, 218174), (110, 198340), (188, 116050), (200, 109087), (211, 103400), (220, 99170), (235, 92840), (275, 79336), (376, 58025), (422, 51700), (440, 49585), (470, 46420), (517, 42200), (550, 39668), (844, 25850), (940, 23210), (1034, 21100), (1055, 20680), (1100, 19834), (1175, 18568), (1688, 12925), (1880, 11605), (2068, 10550), (2110, 10340), (2200, 9917), (2321, 9400), (2350, 9284), (2585, 8440), (4136, 5275), (4220, 5170), (4642, 4700)]