2021111990

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1356451}}^1$

素因数の和:1356607

約数の個数: 16

約数和(自身を含む): 3662420400

約数和(自身を除く): 1641308410

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 1356451, 2712902, 6782255, 13564510, 202111199, 404222398, 1010555995, 2021111990]

約数ペア:

[(1, 2021111990), (2, 1010555995), (5, 404222398), (10, 202111199), (149, 13564510), (298, 6782255), (745, 2712902), (1490, 1356451)]