20717218

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{797}}^1$

素因数の和:1157

約数の個数: 16

約数和(自身を含む): 31974264

約数和(自身を除く): 11257046

約数列:

[1, 2, 41, 82, 317, 634, 797, 1594, 12997, 25994, 32677, 65354, 252649, 505298, 10358609, 20717218]

約数ペア:

[(1, 20717218), (2, 10358609), (41, 505298), (82, 252649), (317, 65354), (634, 32677), (797, 25994), (1594, 12997)]