21514955329

素因数分解:

$7^2\times {\mathrm{47}}^2\times {\mathrm{198769}}^1$

素因数の和:198877

約数の個数: 18

約数和(自身を含む): 25571561730

約数和(自身を除く): 4056606401

約数列:

[1, 7, 47, 49, 329, 2209, 2303, 15463, 108241, 198769, 1391383, 9342143, 9739681, 65395001, 439080721, 457765007, 3073565047, 21514955329]

約数ペア:

[(1, 21514955329), (7, 3073565047), (47, 457765007), (49, 439080721), (329, 65395001), (2209, 9739681), (2303, 9342143), (15463, 1391383), (108241, 198769)]