20490907

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1074

約数の個数: 16

約数和(自身を含む): 22855680

約数和(自身を除く): 2364773

約数列:

[1, 23, 29, 31, 667, 713, 899, 991, 20677, 22793, 28739, 30721, 660997, 706583, 890909, 20490907]

約数ペア:

[(1, 20490907), (23, 890909), (29, 706583), (31, 660997), (667, 30721), (713, 28739), (899, 22793), (991, 20677)]