2021404790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{6961}}^1$

素因数の和:7448

約数の個数: 32

約数和(自身を含む): 3699328320

約数和(自身を除く): 1677923530

約数列:

[1, 2, 5, 10, 71, 142, 355, 409, 710, 818, 2045, 4090, 6961, 13922, 29039, 34805, 58078, 69610, 145195, 290390, 494231, 988462, 2471155, 2847049, 4942310, 5694098, 14235245, 28470490, 202140479, 404280958, 1010702395, 2021404790]

約数ペア:

[(1, 2021404790), (2, 1010702395), (5, 404280958), (10, 202140479), (71, 28470490), (142, 14235245), (355, 5694098), (409, 4942310), (710, 2847049), (818, 2471155), (2045, 988462), (4090, 494231), (6961, 290390), (13922, 145195), (29039, 69610), (34805, 58078)]