21732867

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20639}}^1$

素因数の和:20664

約数の個数: 20

約数和(自身を含む): 34964160

約数和(自身を除く): 13231293

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20639, 61917, 185751, 268307, 557253, 804921, 1671759, 2414763, 7244289, 21732867]

約数ペア:

[(1, 21732867), (3, 7244289), (9, 2414763), (13, 1671759), (27, 804921), (39, 557253), (81, 268307), (117, 185751), (351, 61917), (1053, 20639)]