51440727

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{241}}^1\times {\mathrm{421}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 74754768

約数和(自身を除く): 23314041

約数列:

[1, 3, 13, 39, 169, 241, 421, 507, 723, 1263, 3133, 5473, 9399, 16419, 40729, 71149, 101461, 122187, 213447, 304383, 1318993, 3956979, 17146909, 51440727]

約数ペア:

[(1, 51440727), (3, 17146909), (13, 3956979), (39, 1318993), (169, 304383), (241, 213447), (421, 122187), (507, 101461), (723, 71149), (1263, 40729), (3133, 16419), (5473, 9399)]