20831408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100151}}^1$

素因数の和:100172

約数の個数: 20

約数和(自身を含む): 43465968

約数和(自身を除く): 22634560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100151, 200302, 400604, 801208, 1301963, 1602416, 2603926, 5207852, 10415704, 20831408]

約数ペア:

[(1, 20831408), (2, 10415704), (4, 5207852), (8, 2603926), (13, 1602416), (16, 1301963), (26, 801208), (52, 400604), (104, 200302), (208, 100151)]