81453879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{30269}}^1$

素因数の和:30311

約数の個数: 24

約数和(自身を含む): 132219360

約数和(自身を除く): 50765481

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 30269, 90807, 272421, 393497, 696187, 1180491, 2088561, 3541473, 6265683, 9050431, 27151293, 81453879]

約数ペア:

[(1, 81453879), (3, 27151293), (9, 9050431), (13, 6265683), (23, 3541473), (39, 2088561), (69, 1180491), (117, 696187), (207, 393497), (299, 272421), (897, 90807), (2691, 30269)]