21845260

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6701}}^1$

素因数の和:6873

約数の個数: 24

約数和(自身を含む): 46163376

約数和(自身を除く): 24318116

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6701, 13402, 26804, 33505, 67010, 134020, 1092263, 2184526, 4369052, 5461315, 10922630, 21845260]

約数ペア:

[(1, 21845260), (2, 10922630), (4, 5461315), (5, 4369052), (10, 2184526), (20, 1092263), (163, 134020), (326, 67010), (652, 33505), (815, 26804), (1630, 13402), (3260, 6701)]