21377084

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 38539200

約数和(自身を除く): 17162116

約数列:

[1, 2, 4, 61, 79, 122, 158, 244, 316, 1109, 2218, 4436, 4819, 9638, 19276, 67649, 87611, 135298, 175222, 270596, 350444, 5344271, 10688542, 21377084]

約数ペア:

[(1, 21377084), (2, 10688542), (4, 5344271), (61, 350444), (79, 270596), (122, 175222), (158, 135298), (244, 87611), (316, 67649), (1109, 19276), (2218, 9638), (4436, 4819)]