28875724

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{24979}}^1$

素因数の和:25017

約数の個数: 18

約数和(自身を含む): 53682020

約数和(自身を除く): 24806296

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 24979, 49958, 99916, 424643, 849286, 1698572, 7218931, 14437862, 28875724]

約数ペア:

[(1, 28875724), (2, 14437862), (4, 7218931), (17, 1698572), (34, 849286), (68, 424643), (289, 99916), (578, 49958), (1156, 24979)]