28287779

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4129}}^1$

素因数の和:4190

約数の個数: 16

約数和(自身を含む): 33304320

約数和(自身を除く): 5016541

約数列:

[1, 13, 17, 31, 221, 403, 527, 4129, 6851, 53677, 70193, 127999, 912509, 1663987, 2175983, 28287779]

約数ペア:

[(1, 28287779), (13, 2175983), (17, 1663987), (31, 912509), (221, 127999), (403, 70193), (527, 53677), (4129, 6851)]