21013010

素因数分解:

$2^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2591}}^1$

素因数の和:3409

約数の個数: 16

約数和(自身を含む): 37884672

約数和(自身を除く): 16871662

約数列:

[1, 2, 5, 10, 811, 1622, 2591, 4055, 5182, 8110, 12955, 25910, 2101301, 4202602, 10506505, 21013010]

約数ペア:

[(1, 21013010), (2, 10506505), (5, 4202602), (10, 2101301), (811, 25910), (1622, 12955), (2591, 8110), (4055, 5182)]