2021158517

素因数分解:

$7^2\times {\mathrm{1987}}^1\times {\mathrm{20759}}^1$

素因数の和:22760

約数の個数: 12

約数和(自身を含む): 2352440160

約数和(自身を除く): 331281643

約数列:

[1, 7, 49, 1987, 13909, 20759, 97363, 145313, 1017191, 41248133, 288736931, 2021158517]

約数ペア:

[(1, 2021158517), (7, 288736931), (49, 41248133), (1987, 1017191), (13909, 145313), (20759, 97363)]