21368151

素因数分解:

$3^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{677}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 36449280

約数和(自身を除く): 15081129

約数列:

[1, 3, 7, 9, 21, 27, 63, 167, 189, 501, 677, 1169, 1503, 2031, 3507, 4509, 4739, 6093, 10521, 14217, 18279, 31563, 42651, 113059, 127953, 339177, 791413, 1017531, 2374239, 3052593, 7122717, 21368151]

約数ペア:

[(1, 21368151), (3, 7122717), (7, 3052593), (9, 2374239), (21, 1017531), (27, 791413), (63, 339177), (167, 127953), (189, 113059), (501, 42651), (677, 31563), (1169, 18279), (1503, 14217), (2031, 10521), (3507, 6093), (4509, 4739)]