78724791

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{42257}}^1$

素因数の和:42292

約数の個数: 20

約数和(自身を含む): 122717232

約数和(自身を除く): 43992441

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 42257, 126771, 380313, 971911, 1140939, 2915733, 3422817, 8747199, 26241597, 78724791]

約数ペア:

[(1, 78724791), (3, 26241597), (9, 8747199), (23, 3422817), (27, 2915733), (69, 1140939), (81, 971911), (207, 380313), (621, 126771), (1863, 42257)]