20214410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^2\times {\mathrm{401}}^1$

素因数の和:550

約数の個数: 24

約数和(自身を含む): 36997668

約数和(自身を除く): 16783258

約数列:

[1, 2, 5, 10, 71, 142, 355, 401, 710, 802, 2005, 4010, 5041, 10082, 25205, 28471, 50410, 56942, 142355, 284710, 2021441, 4042882, 10107205, 20214410]

約数ペア:

[(1, 20214410), (2, 10107205), (5, 4042882), (10, 2021441), (71, 284710), (142, 142355), (355, 56942), (401, 50410), (710, 28471), (802, 25205), (2005, 10082), (4010, 5041)]