28321153

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2917}}^1$

素因数の和:3016

約数の個数: 16

約数和(自身を含む): 34549120

約数和(自身を除く): 6227967

約数列:

[1, 7, 19, 73, 133, 511, 1387, 2917, 9709, 20419, 55423, 212941, 387961, 1490587, 4045879, 28321153]

約数ペア:

[(1, 28321153), (7, 4045879), (19, 1490587), (73, 387961), (133, 212941), (511, 55423), (1387, 20419), (2917, 9709)]