28718431

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1487}}^1$

素因数の和:1614

約数の個数: 16

約数和(自身を含む): 34283520

約数和(自身を除く): 5565089

約数列:

[1, 7, 31, 89, 217, 623, 1487, 2759, 10409, 19313, 46097, 132343, 322679, 926401, 4102633, 28718431]

約数ペア:

[(1, 28718431), (7, 4102633), (31, 926401), (89, 322679), (217, 132343), (623, 46097), (1487, 19313), (2759, 10409)]