28342209

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{10627}}^1$

素因数の和:10764

約数の個数: 16

約数和(自身を含む): 43532288

約数和(自身を除く): 15190079

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 10627, 31881, 74389, 223167, 1349629, 4048887, 9447403, 28342209]

約数ペア:

[(1, 28342209), (3, 9447403), (7, 4048887), (21, 1349629), (127, 223167), (381, 74389), (889, 31881), (2667, 10627)]