21247398

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 48147216

約数和(自身を除く): 26899818

約数列:

[1, 2, 3, 6, 9, 18, 37, 61, 74, 111, 122, 183, 222, 333, 366, 523, 549, 666, 1046, 1098, 1569, 2257, 3138, 4514, 4707, 6771, 9414, 13542, 19351, 20313, 31903, 38702, 40626, 58053, 63806, 95709, 116106, 174159, 191418, 287127, 348318, 574254, 1180411, 2360822, 3541233, 7082466, 10623699, 21247398]

約数ペア:

[(1, 21247398), (2, 10623699), (3, 7082466), (6, 3541233), (9, 2360822), (18, 1180411), (37, 574254), (61, 348318), (74, 287127), (111, 191418), (122, 174159), (183, 116106), (222, 95709), (333, 63806), (366, 58053), (523, 40626), (549, 38702), (666, 31903), (1046, 20313), (1098, 19351), (1569, 13542), (2257, 9414), (3138, 6771), (4514, 4707)]