18835371

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 28972944

約数和(自身を除く): 10137573

約数列:

[1, 3, 9, 17, 51, 153, 307, 401, 921, 1203, 2763, 3609, 5219, 6817, 15657, 20451, 46971, 61353, 123107, 369321, 1107963, 2092819, 6278457, 18835371]

約数ペア:

[(1, 18835371), (3, 6278457), (9, 2092819), (17, 1107963), (51, 369321), (153, 123107), (307, 61353), (401, 46971), (921, 20451), (1203, 15657), (2763, 6817), (3609, 5219)]