28290431

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 33335280

約数和(自身を除く): 5044849

約数列:

[1, 13, 17, 43, 169, 221, 229, 559, 731, 2873, 2977, 3893, 7267, 9503, 9847, 38701, 50609, 123539, 128011, 167399, 657917, 1664143, 2176187, 28290431]

約数ペア:

[(1, 28290431), (13, 2176187), (17, 1664143), (43, 657917), (169, 167399), (221, 128011), (229, 123539), (559, 50609), (731, 38701), (2873, 9847), (2977, 9503), (3893, 7267)]