21861815

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2269}}^1$

素因数の和:2362

約数の個数: 16

約数和(自身を含む): 27457920

約数和(自身を除く): 5596105

約数列:

[1, 5, 41, 47, 205, 235, 1927, 2269, 9635, 11345, 93029, 106643, 465145, 533215, 4372363, 21861815]

約数ペア:

[(1, 21861815), (5, 4372363), (41, 533215), (47, 465145), (205, 106643), (235, 93029), (1927, 11345), (2269, 9635)]