219953209

素因数分解:

$7^5\times {\mathrm{23}}^1\times {\mathrm{569}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 268237440

約数和(自身を除く): 48284231

約数列:

[1, 7, 23, 49, 161, 343, 569, 1127, 2401, 3983, 7889, 13087, 16807, 27881, 55223, 91609, 195167, 386561, 641263, 1366169, 4488841, 9563183, 31421887, 219953209]

約数ペア:

[(1, 219953209), (7, 31421887), (23, 9563183), (49, 4488841), (161, 1366169), (343, 641263), (569, 386561), (1127, 195167), (2401, 91609), (3983, 55223), (7889, 27881), (13087, 16807)]