20906418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2459}}^1$

素因数の和:2586

約数の個数: 32

約数和(自身を含む): 45460800

約数和(自身を除く): 24554382

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 109, 218, 327, 654, 1417, 2459, 2834, 4251, 4918, 7377, 8502, 14754, 31967, 63934, 95901, 191802, 268031, 536062, 804093, 1608186, 3484403, 6968806, 10453209, 20906418]

約数ペア:

[(1, 20906418), (2, 10453209), (3, 6968806), (6, 3484403), (13, 1608186), (26, 804093), (39, 536062), (78, 268031), (109, 191802), (218, 95901), (327, 63934), (654, 31967), (1417, 14754), (2459, 8502), (2834, 7377), (4251, 4918)]