21528868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4337}}^1$

素因数の和:4431

約数の個数: 24

約数和(自身を含む): 40447512

約数和(自身を除く): 18918644

約数列:

[1, 2, 4, 17, 34, 68, 73, 146, 292, 1241, 2482, 4337, 4964, 8674, 17348, 73729, 147458, 294916, 316601, 633202, 1266404, 5382217, 10764434, 21528868]

約数ペア:

[(1, 21528868), (2, 10764434), (4, 5382217), (17, 1266404), (34, 633202), (68, 316601), (73, 294916), (146, 147458), (292, 73729), (1241, 17348), (2482, 8674), (4337, 4964)]