258253919

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2377}}^1$

素因数の和:2495

約数の個数: 32

約数和(自身を含む): 345171456

約数和(自身を除く): 86917537

約数列:

[1, 7, 11, 17, 77, 83, 119, 187, 581, 913, 1309, 1411, 2377, 6391, 9877, 15521, 16639, 26147, 40409, 108647, 183029, 197291, 282863, 444499, 1381037, 2170201, 3111493, 3353947, 15191407, 23477629, 36893417, 258253919]

約数ペア:

[(1, 258253919), (7, 36893417), (11, 23477629), (17, 15191407), (77, 3353947), (83, 3111493), (119, 2170201), (187, 1381037), (581, 444499), (913, 282863), (1309, 197291), (1411, 183029), (2377, 108647), (6391, 40409), (9877, 26147), (15521, 16639)]