31421887

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{569}}^1$

素因数の和:620

約数の個数: 20

約数和(自身を含む): 38317680

約数和(自身を除く): 6895793

約数列:

[1, 7, 23, 49, 161, 343, 569, 1127, 2401, 3983, 7889, 13087, 27881, 55223, 91609, 195167, 641263, 1366169, 4488841, 31421887]

約数ペア:

[(1, 31421887), (7, 4488841), (23, 1366169), (49, 641263), (161, 195167), (343, 91609), (569, 55223), (1127, 27881), (2401, 13087), (3983, 7889)]