19890872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1223}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 19766728

約数列:

[1, 2, 4, 8, 19, 38, 76, 107, 152, 214, 428, 856, 1223, 2033, 2446, 4066, 4892, 8132, 9784, 16264, 23237, 46474, 92948, 130861, 185896, 261722, 523444, 1046888, 2486359, 4972718, 9945436, 19890872]

約数ペア:

[(1, 19890872), (2, 9945436), (4, 4972718), (8, 2486359), (19, 1046888), (38, 523444), (76, 261722), (107, 185896), (152, 130861), (214, 92948), (428, 46474), (856, 23237), (1223, 16264), (2033, 9784), (2446, 8132), (4066, 4892)]