21281092

素因数分解:

$2^2\times 7^3\times {\mathrm{15511}}^1$

素因数の和:15536

約数の個数: 24

約数和(自身を含む): 43433600

約数和(自身を除く): 22152508

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15511, 31022, 62044, 108577, 217154, 434308, 760039, 1520078, 3040156, 5320273, 10640546, 21281092]

約数ペア:

[(1, 21281092), (2, 10640546), (4, 5320273), (7, 3040156), (14, 1520078), (28, 760039), (49, 434308), (98, 217154), (196, 108577), (343, 62044), (686, 31022), (1372, 15511)]