21394186

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42281}}^1$

素因数の和:42317

約数の個数: 16

約数和(自身を含む): 36531648

約数和(自身を除く): 15137462

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42281, 84562, 465091, 930182, 972463, 1944926, 10697093, 21394186]

約数ペア:

[(1, 21394186), (2, 10697093), (11, 1944926), (22, 972463), (23, 930182), (46, 465091), (253, 84562), (506, 42281)]