12798981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 20078240

約数和(自身を除く): 7279259

約数列:

[1, 3, 9, 13, 39, 117, 139, 417, 787, 1251, 1807, 2361, 5421, 7083, 10231, 16263, 30693, 92079, 109393, 328179, 984537, 1422109, 4266327, 12798981]

約数ペア:

[(1, 12798981), (3, 4266327), (9, 1422109), (13, 984537), (39, 328179), (117, 109393), (139, 92079), (417, 30693), (787, 16263), (1251, 10231), (1807, 7083), (2361, 5421)]