21897132368

素因数分解:

$2^4\times {\mathrm{4871}}^1\times {\mathrm{280963}}^1$

素因数の和:285842

約数の個数: 20

約数和(自身を含む): 42434554848

約数和(自身を除く): 20537422480

約数列:

[1, 2, 4, 8, 16, 4871, 9742, 19484, 38968, 77936, 280963, 561926, 1123852, 2247704, 4495408, 1368570773, 2737141546, 5474283092, 10948566184, 21897132368]

約数ペア:

[(1, 21897132368), (2, 10948566184), (4, 5474283092), (8, 2737141546), (16, 1368570773), (4871, 4495408), (9742, 2247704), (19484, 1123852), (38968, 561926), (77936, 280963)]