257432838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{19763}}^1$

素因数の和:19948

約数の個数: 32

約数和(自身を含む): 557819136

約数和(自身を除く): 300386298

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 167, 334, 501, 1002, 2171, 4342, 6513, 13026, 19763, 39526, 59289, 118578, 256919, 513838, 770757, 1541514, 3300421, 6600842, 9901263, 19802526, 42905473, 85810946, 128716419, 257432838]

約数ペア:

[(1, 257432838), (2, 128716419), (3, 85810946), (6, 42905473), (13, 19802526), (26, 9901263), (39, 6600842), (78, 3300421), (167, 1541514), (334, 770757), (501, 513838), (1002, 256919), (2171, 118578), (4342, 59289), (6513, 39526), (13026, 19763)]