20988790

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{44657}}^1$

素因数の和:44711

約数の個数: 16

約数和(自身を含む): 38584512

約数和(自身を除く): 17595722

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 44657, 89314, 223285, 446570, 2098879, 4197758, 10494395, 20988790]

約数ペア:

[(1, 20988790), (2, 10494395), (5, 4197758), (10, 2098879), (47, 446570), (94, 223285), (235, 89314), (470, 44657)]