20404436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4967}}^1$

素因数の和:5063

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 18544684

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4967, 9934, 19868, 64571, 129142, 258284, 392393, 784786, 1569572, 5101109, 10202218, 20404436]

約数ペア:

[(1, 20404436), (2, 10202218), (4, 5101109), (13, 1569572), (26, 784786), (52, 392393), (79, 258284), (158, 129142), (316, 64571), (1027, 19868), (2054, 9934), (4108, 4967)]