19518658

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1353

約数の個数: 16

約数和(自身を含む): 29998080

約数和(自身を除く): 10479422

約数列:

[1, 2, 61, 122, 139, 278, 1151, 2302, 8479, 16958, 70211, 140422, 159989, 319978, 9759329, 19518658]

約数ペア:

[(1, 19518658), (2, 9759329), (61, 319978), (122, 159989), (139, 140422), (278, 70211), (1151, 16958), (2302, 8479)]