221231764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{13421}}^1$

素因数の和:13755

約数の個数: 24

約数和(自身を含む): 418283208

約数和(自身を除く): 197051444

約数列:

[1, 2, 4, 13, 26, 52, 317, 634, 1268, 4121, 8242, 13421, 16484, 26842, 53684, 174473, 348946, 697892, 4254457, 8508914, 17017828, 55307941, 110615882, 221231764]

約数ペア:

[(1, 221231764), (2, 110615882), (4, 55307941), (13, 17017828), (26, 8508914), (52, 4254457), (317, 697892), (634, 348946), (1268, 174473), (4121, 53684), (8242, 26842), (13421, 16484)]