20589991

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 22302720

約数和(自身を除く): 1712729

約数列:

[1, 23, 43, 109, 191, 989, 2507, 4393, 4687, 8213, 20819, 107801, 188899, 478837, 895217, 20589991]

約数ペア:

[(1, 20589991), (23, 895217), (43, 478837), (109, 188899), (191, 107801), (989, 20819), (2507, 8213), (4393, 4687)]