21041578

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1\times {\mathrm{367}}^1$

素因数の和:741

約数の個数: 16

約数和(自身を含む): 32060160

約数和(自身を除く): 11018582

約数列:

[1, 2, 109, 218, 263, 367, 526, 734, 28667, 40003, 57334, 80006, 96521, 193042, 10520789, 21041578]

約数ペア:

[(1, 21041578), (2, 10520789), (109, 193042), (218, 96521), (263, 80006), (367, 57334), (526, 40003), (734, 28667)]