20431954

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7573}}^1$

素因数の和:7665

約数の個数: 16

約数和(自身を含む): 32719680

約数和(自身を除く): 12287726

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7573, 15146, 143887, 287774, 537683, 1075366, 10215977, 20431954]

約数ペア:

[(1, 20431954), (2, 10215977), (19, 1075366), (38, 537683), (71, 287774), (142, 143887), (1349, 15146), (2698, 7573)]