251307329

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1637}}^1$

素因数の和:1905

約数の個数: 24

約数和(自身を含む): 316324008

約数和(自身を除く): 65016679

約数列:

[1, 7, 13, 49, 91, 241, 637, 1637, 1687, 3133, 11459, 11809, 21281, 21931, 80213, 148967, 153517, 394517, 1042769, 2761619, 5128721, 19331333, 35901047, 251307329]

約数ペア:

[(1, 251307329), (7, 35901047), (13, 19331333), (49, 5128721), (91, 2761619), (241, 1042769), (637, 394517), (1637, 153517), (1687, 148967), (3133, 80213), (11459, 21931), (11809, 21281)]