25684789

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:485

約数の個数: 18

約数和(自身を含む): 29423106

約数和(自身を除く): 3738317

約数列:

[1, 13, 19, 169, 247, 361, 421, 3211, 4693, 5473, 7999, 61009, 71149, 103987, 151981, 1351831, 1975753, 25684789]

約数ペア:

[(1, 25684789), (13, 1975753), (19, 1351831), (169, 151981), (247, 103987), (361, 71149), (421, 61009), (3211, 7999), (4693, 5473)]