12506781

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 20590848

約数和(自身を除く): 8084067

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 661, 901, 1113, 1983, 2703, 4627, 6307, 11237, 13881, 18921, 33711, 35033, 78659, 105099, 235977, 245231, 595561, 735693, 1786683, 4168927, 12506781]

約数ペア:

[(1, 12506781), (3, 4168927), (7, 1786683), (17, 735693), (21, 595561), (51, 245231), (53, 235977), (119, 105099), (159, 78659), (357, 35033), (371, 33711), (661, 18921), (901, 13881), (1113, 11237), (1983, 6307), (2703, 4627)]