28131047

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 34610400

約数和(自身を除く): 6479353

約数列:

[1, 7, 23, 49, 109, 161, 229, 763, 1127, 1603, 2507, 5267, 5341, 11221, 17549, 24961, 36869, 122843, 174727, 258083, 574103, 1223089, 4018721, 28131047]

約数ペア:

[(1, 28131047), (7, 4018721), (23, 1223089), (49, 574103), (109, 258083), (161, 174727), (229, 122843), (763, 36869), (1127, 24961), (1603, 17549), (2507, 11221), (5267, 5341)]