7897257

素因数分解:

$3^7\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 12437760

約数和(自身を除く): 4540503

約数列:

[1, 3, 9, 23, 27, 69, 81, 157, 207, 243, 471, 621, 729, 1413, 1863, 2187, 3611, 4239, 5589, 10833, 12717, 16767, 32499, 38151, 50301, 97497, 114453, 292491, 343359, 877473, 2632419, 7897257]

約数ペア:

[(1, 7897257), (3, 2632419), (9, 877473), (23, 343359), (27, 292491), (69, 114453), (81, 97497), (157, 50301), (207, 38151), (243, 32499), (471, 16767), (621, 12717), (729, 10833), (1413, 5589), (1863, 4239), (2187, 3611)]