21000852464

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6662707}}^1$

素因数の和:6662912

約数の個数: 20

約数和(自身を含む): 40895701704

約数和(自身を除く): 19894849240

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6662707, 13325414, 26650828, 53301656, 106603312, 1312553279, 2625106558, 5250213116, 10500426232, 21000852464]

約数ペア:

[(1, 21000852464), (2, 10500426232), (4, 5250213116), (8, 2625106558), (16, 1312553279), (197, 106603312), (394, 53301656), (788, 26650828), (1576, 13325414), (3152, 6662707)]