21898708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1193}}^1$

素因数の和:1563

約数の個数: 24

約数和(自身を含む): 41422248

約数和(自身を除く): 19523540

約数列:

[1, 2, 4, 13, 26, 52, 353, 706, 1193, 1412, 2386, 4589, 4772, 9178, 15509, 18356, 31018, 62036, 421129, 842258, 1684516, 5474677, 10949354, 21898708]

約数ペア:

[(1, 21898708), (2, 10949354), (4, 5474677), (13, 1684516), (26, 842258), (52, 421129), (353, 62036), (706, 31018), (1193, 18356), (1412, 15509), (2386, 9178), (4589, 4772)]