21232475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{7019}}^1$

素因数の和:7051

約数の個数: 18

約数和(自身を含む): 28943460

約数和(自身を除く): 7710985

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 7019, 35095, 77209, 175475, 386045, 849299, 1930225, 4246495, 21232475]

約数ペア:

[(1, 21232475), (5, 4246495), (11, 1930225), (25, 849299), (55, 386045), (121, 175475), (275, 77209), (605, 35095), (3025, 7019)]