21891568

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{36979}}^1$

素因数の和:37024

約数の個数: 20

約数和(自身を含む): 43562440

約数和(自身を除く): 21670872

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 36979, 73958, 147916, 295832, 591664, 1368223, 2736446, 5472892, 10945784, 21891568]

約数ペア:

[(1, 21891568), (2, 10945784), (4, 5472892), (8, 2736446), (16, 1368223), (37, 591664), (74, 295832), (148, 147916), (296, 73958), (592, 36979)]