21348103690

素因数分解:

$2^1\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{997109}}^1$

素因数の和:999257

約数の個数: 16

約数和(自身を含む): 38444573160

約数和(自身を除く): 17096469470

約数列:

[1, 2, 5, 10, 2141, 4282, 10705, 21410, 997109, 1994218, 4985545, 9971090, 2134810369, 4269620738, 10674051845, 21348103690]

約数ペア:

[(1, 21348103690), (2, 10674051845), (5, 4269620738), (10, 2134810369), (2141, 9971090), (4282, 4985545), (10705, 1994218), (21410, 997109)]