21920522

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9473}}^1$

素因数の和:9577

約数の個数: 16

約数和(自身を含む): 35811720

約数和(自身を除く): 13891198

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 9473, 18946, 123149, 246298, 843097, 1686194, 10960261, 21920522]

約数ペア:

[(1, 21920522), (2, 10960261), (13, 1686194), (26, 843097), (89, 246298), (178, 123149), (1157, 18946), (2314, 9473)]