25639821

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{10211}}^1$

素因数の和:10254

約数の個数: 20

約数和(自身を含む): 39540864

約数和(自身を除く): 13901043

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 10211, 30633, 91899, 275697, 316541, 827091, 949623, 2848869, 8546607, 25639821]

約数ペア:

[(1, 25639821), (3, 8546607), (9, 2848869), (27, 949623), (31, 827091), (81, 316541), (93, 275697), (279, 91899), (837, 30633), (2511, 10211)]