20986636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28057}}^1$

素因数の和:28089

約数の個数: 24

約数和(自身を含む): 42423696

約数和(自身を除く): 21437060

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 28057, 56114, 112228, 308627, 476969, 617254, 953938, 1234508, 1907876, 5246659, 10493318, 20986636]

約数ペア:

[(1, 20986636), (2, 10493318), (4, 5246659), (11, 1907876), (17, 1234508), (22, 953938), (34, 617254), (44, 476969), (68, 308627), (187, 112228), (374, 56114), (748, 28057)]