20170977

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{1213}}^1$

素因数の和:1480

約数の個数: 16

約数和(自身を含む): 28203648

約数和(自身を除く): 8032671

約数列:

[1, 3, 23, 69, 241, 723, 1213, 3639, 5543, 16629, 27899, 83697, 292333, 876999, 6723659, 20170977]

約数ペア:

[(1, 20170977), (3, 6723659), (23, 876999), (69, 292333), (241, 83697), (723, 27899), (1213, 16629), (3639, 5543)]