20457794

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10987}}^1$

素因数の和:11022

約数の個数: 24

約数和(自身を含む): 37578960

約数和(自身を除く): 17121166

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 10987, 21974, 76909, 153818, 208753, 417506, 538363, 1076726, 1461271, 2922542, 10228897, 20457794]

約数ペア:

[(1, 20457794), (2, 10228897), (7, 2922542), (14, 1461271), (19, 1076726), (38, 538363), (49, 417506), (98, 208753), (133, 153818), (266, 76909), (931, 21974), (1862, 10987)]