261873

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 20

約数和(自身を含む): 405108

約数和(自身を除く): 143235

約数列:

[1, 3, 9, 27, 53, 61, 81, 159, 183, 477, 549, 1431, 1647, 3233, 4293, 4941, 9699, 29097, 87291, 261873]

約数ペア:

[(1, 261873), (3, 87291), (9, 29097), (27, 9699), (53, 4941), (61, 4293), (81, 3233), (159, 1647), (183, 1431), (477, 549)]