21125778

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{21601}}^1$

素因数の和:21769

約数の個数: 16

約数和(自身を含む): 42512736

約数和(自身を除く): 21386958

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 21601, 43202, 64803, 129606, 3520963, 7041926, 10562889, 21125778]

約数ペア:

[(1, 21125778), (2, 10562889), (3, 7041926), (6, 3520963), (163, 129606), (326, 64803), (489, 43202), (978, 21601)]