21152803948

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1809169}}^1$

素因数の和:1809289

約数の個数: 24

約数和(自身を含む): 38499137600

約数和(自身を除く): 17346333652

約数列:

[1, 2, 4, 37, 74, 79, 148, 158, 316, 2923, 5846, 11692, 1809169, 3618338, 7236676, 66939253, 133878506, 142924351, 267757012, 285848702, 571697404, 5288200987, 10576401974, 21152803948]

約数ペア:

[(1, 21152803948), (2, 10576401974), (4, 5288200987), (37, 571697404), (74, 285848702), (79, 267757012), (148, 142924351), (158, 133878506), (316, 66939253), (2923, 7236676), (5846, 3618338), (11692, 1809169)]