18968243

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{3253}}^1$

素因数の和:3291

約数の個数: 16

約数和(自身を含む): 23428800

約数和(自身を除く): 4460557

約数列:

[1, 7, 17, 49, 119, 343, 833, 3253, 5831, 22771, 55301, 159397, 387107, 1115779, 2709749, 18968243]

約数ペア:

[(1, 18968243), (7, 2709749), (17, 1115779), (49, 387107), (119, 159397), (343, 55301), (833, 22771), (3253, 5831)]