20954815

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31511}}^1$

素因数の和:31542

約数の個数: 16

約数和(自身を含む): 30251520

約数和(自身を除く): 9296705

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31511, 157555, 220577, 598709, 1102885, 2993545, 4190963, 20954815]

約数ペア:

[(1, 20954815), (5, 4190963), (7, 2993545), (19, 1102885), (35, 598709), (95, 220577), (133, 157555), (665, 31511)]