20400679

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 22684032

約数和(自身を除く): 2283353

約数列:

[1, 13, 47, 173, 193, 611, 2249, 2509, 8131, 9071, 33389, 105703, 117923, 434057, 1569283, 20400679]

約数ペア:

[(1, 20400679), (13, 1569283), (47, 434057), (173, 117923), (193, 105703), (611, 33389), (2249, 9071), (2509, 8131)]