21361025

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3299}}^1$

素因数の和:3353

約数の個数: 24

約数和(自身を含む): 31099200

約数和(自身を除く): 9738175

約数列:

[1, 5, 7, 25, 35, 37, 175, 185, 259, 925, 1295, 3299, 6475, 16495, 23093, 82475, 115465, 122063, 577325, 610315, 854441, 3051575, 4272205, 21361025]

約数ペア:

[(1, 21361025), (5, 4272205), (7, 3051575), (25, 854441), (35, 610315), (37, 577325), (175, 122063), (185, 115465), (259, 82475), (925, 23093), (1295, 16495), (3299, 6475)]