18959138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21019}}^1$

素因数の和:21073

約数の個数: 16

約数和(自身を含む): 31782240

約数和(自身を除く): 12823102

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21019, 42038, 231209, 462418, 861779, 1723558, 9479569, 18959138]

約数ペア:

[(1, 18959138), (2, 9479569), (11, 1723558), (22, 861779), (41, 462418), (82, 231209), (451, 42038), (902, 21019)]