257440329

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{4441}}^1$

素因数の和:4582

約数の個数: 32

約数和(自身を含む): 405110400

約数和(自身を除く): 147670071

約数列:

[1, 3, 9, 19, 27, 57, 113, 171, 339, 513, 1017, 2147, 3051, 4441, 6441, 13323, 19323, 39969, 57969, 84379, 119907, 253137, 501833, 759411, 1505499, 2278233, 4516497, 9534827, 13549491, 28604481, 85813443, 257440329]

約数ペア:

[(1, 257440329), (3, 85813443), (9, 28604481), (19, 13549491), (27, 9534827), (57, 4516497), (113, 2278233), (171, 1505499), (339, 759411), (513, 501833), (1017, 253137), (2147, 119907), (3051, 84379), (4441, 57969), (6441, 39969), (13323, 19323)]