19027791

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{3851}}^1$

素因数の和:3924

約数の個数: 20

約数和(自身を含む): 28897704

約数和(自身を除く): 9869913

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 3851, 4941, 11553, 34659, 103977, 234911, 311931, 704733, 2114199, 6342597, 19027791]

約数ペア:

[(1, 19027791), (3, 6342597), (9, 2114199), (27, 704733), (61, 311931), (81, 234911), (183, 103977), (549, 34659), (1647, 11553), (3851, 4941)]