18303607

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 22572000

約数和(自身を除く): 4268393

約数列:

[1, 7, 23, 49, 109, 149, 161, 763, 1043, 1127, 2507, 3427, 5341, 7301, 16241, 17549, 23989, 113687, 122843, 167923, 373543, 795809, 2614801, 18303607]

約数ペア:

[(1, 18303607), (7, 2614801), (23, 795809), (49, 373543), (109, 167923), (149, 122843), (161, 113687), (763, 23989), (1043, 17549), (1127, 16241), (2507, 7301), (3427, 5341)]