28365778

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{28537}}^1$

素因数の和:28617

約数の個数: 16

約数和(自身を含む): 49313664

約数和(自身を除く): 20947886

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 28537, 57074, 199759, 399518, 2026127, 4052254, 14182889, 28365778]

約数ペア:

[(1, 28365778), (2, 14182889), (7, 4052254), (14, 2026127), (71, 399518), (142, 199759), (497, 57074), (994, 28537)]