19995844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{454451}}^1$

素因数の和:454466

約数の個数: 12

約数和(自身を含む): 38173968

約数和(自身を除く): 18178124

約数列:

[1, 2, 4, 11, 22, 44, 454451, 908902, 1817804, 4998961, 9997922, 19995844]

約数ペア:

[(1, 19995844), (2, 9997922), (4, 4998961), (11, 1817804), (22, 908902), (44, 454451)]