21906628

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{599}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 39513600

約数和(自身を除く): 17606972

約数列:

[1, 2, 4, 41, 82, 164, 223, 446, 599, 892, 1198, 2396, 9143, 18286, 24559, 36572, 49118, 98236, 133577, 267154, 534308, 5476657, 10953314, 21906628]

約数ペア:

[(1, 21906628), (2, 10953314), (4, 5476657), (41, 534308), (82, 267154), (164, 133577), (223, 98236), (446, 49118), (599, 36572), (892, 24559), (1198, 18286), (2396, 9143)]