21719862

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{8681}}^1$

素因数の和:8828

約数の個数: 24

約数和(自身を含む): 47403720

約数和(自身を除く): 25683858

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 8681, 17362, 26043, 52086, 78129, 156258, 1206659, 2413318, 3619977, 7239954, 10859931, 21719862]

約数ペア:

[(1, 21719862), (2, 10859931), (3, 7239954), (6, 3619977), (9, 2413318), (18, 1206659), (139, 156258), (278, 78129), (417, 52086), (834, 26043), (1251, 17362), (2502, 8681)]