25121421

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23857}}^1$

素因数の和:23882

約数の個数: 20

約数和(自身を含む): 40415452

約数和(自身を除く): 15294031

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 23857, 71571, 214713, 310141, 644139, 930423, 1932417, 2791269, 8373807, 25121421]

約数ペア:

[(1, 25121421), (3, 8373807), (9, 2791269), (13, 1932417), (27, 930423), (39, 644139), (81, 310141), (117, 214713), (351, 71571), (1053, 23857)]