28021982

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{1999}}^1$

素因数の和:2207

約数の個数: 16

約数和(自身を含む): 43296000

約数和(自身を除く): 15274018

約数列:

[1, 2, 43, 86, 163, 326, 1999, 3998, 7009, 14018, 85957, 171914, 325837, 651674, 14010991, 28021982]

約数ペア:

[(1, 28021982), (2, 14010991), (43, 651674), (86, 325837), (163, 171914), (326, 85957), (1999, 14018), (3998, 7009)]