21758715

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 41614560

約数和(自身を除く): 19855845

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 113, 165, 339, 389, 495, 565, 1017, 1167, 1243, 1695, 1945, 3501, 3729, 4279, 5085, 5835, 6215, 11187, 12837, 17505, 18645, 21395, 38511, 43957, 55935, 64185, 131871, 192555, 219785, 395613, 483527, 659355, 1450581, 1978065, 2417635, 4351743, 7252905, 21758715]

約数ペア:

[(1, 21758715), (3, 7252905), (5, 4351743), (9, 2417635), (11, 1978065), (15, 1450581), (33, 659355), (45, 483527), (55, 395613), (99, 219785), (113, 192555), (165, 131871), (339, 64185), (389, 55935), (495, 43957), (565, 38511), (1017, 21395), (1167, 18645), (1243, 17505), (1695, 12837), (1945, 11187), (3501, 6215), (3729, 5835), (4279, 5085)]