81702351

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{5281}}^1$

素因数の和:5484

約数の個数: 20

約数和(自身を含む): 122711424

約数和(自身を除く): 41009073

約数列:

[1, 3, 9, 27, 81, 191, 573, 1719, 5157, 5281, 15471, 15843, 47529, 142587, 427761, 1008671, 3026013, 9078039, 27234117, 81702351]

約数ペア:

[(1, 81702351), (3, 27234117), (9, 9078039), (27, 3026013), (81, 1008671), (191, 427761), (573, 142587), (1719, 47529), (5157, 15843), (5281, 15471)]