20878264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12487}}^1$

素因数の和:12523

約数の個数: 32

約数和(自身を含む): 44956800

約数和(自身を除く): 24078536

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12487, 24974, 49948, 99896, 137357, 237253, 274714, 474506, 549428, 949012, 1098856, 1898024, 2609783, 5219566, 10439132, 20878264]

約数ペア:

[(1, 20878264), (2, 10439132), (4, 5219566), (8, 2609783), (11, 1898024), (19, 1098856), (22, 949012), (38, 549428), (44, 474506), (76, 274714), (88, 237253), (152, 137357), (209, 99896), (418, 49948), (836, 24974), (1672, 12487)]