20961272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154127}}^1$

素因数の和:154150

約数の個数: 16

約数和(自身を含む): 41614560

約数和(自身を除く): 20653288

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154127, 308254, 616508, 1233016, 2620159, 5240318, 10480636, 20961272]

約数ペア:

[(1, 20961272), (2, 10480636), (4, 5240318), (8, 2620159), (17, 1233016), (34, 616508), (68, 308254), (136, 154127)]