13220963855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{18959}}^1$

素因数の和:19415

約数の個数: 32

約数和(自身を含む): 17910374400

約数和(自身を除く): 4689410545

約数列:

[1, 5, 11, 31, 55, 155, 341, 409, 1705, 2045, 4499, 12679, 18959, 22495, 63395, 94795, 139469, 208549, 587729, 697345, 1042745, 2938645, 6465019, 7754231, 32325095, 38771155, 85296541, 240381161, 426482705, 1201905805, 2644192771, 13220963855]

約数ペア:

[(1, 13220963855), (5, 2644192771), (11, 1201905805), (31, 426482705), (55, 240381161), (155, 85296541), (341, 38771155), (409, 32325095), (1705, 7754231), (2045, 6465019), (4499, 2938645), (12679, 1042745), (18959, 697345), (22495, 587729), (63395, 208549), (94795, 139469)]