19996779

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{4013}}^1$

素因数の和:4178

約数の個数: 16

約数和(自身を含む): 29286144

約数和(自身を除く): 9289365

約数列:

[1, 3, 11, 33, 151, 453, 1661, 4013, 4983, 12039, 44143, 132429, 605963, 1817889, 6665593, 19996779]

約数ペア:

[(1, 19996779), (3, 6665593), (11, 1817889), (33, 605963), (151, 132429), (453, 44143), (1661, 12039), (4013, 4983)]