12510981

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2797}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 20951424

約数和(自身を除く): 8440443

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 2797, 4473, 8391, 19579, 25173, 58737, 176211, 198587, 595761, 1390109, 1787283, 4170327, 12510981]

約数ペア:

[(1, 12510981), (3, 4170327), (7, 1787283), (9, 1390109), (21, 595761), (63, 198587), (71, 176211), (213, 58737), (497, 25173), (639, 19579), (1491, 8391), (2797, 4473)]