19912375

素因数分解:

$5^3\times 7^2\times {\mathrm{3251}}^1$

素因数の和:3280

約数の個数: 24

約数和(自身を含む): 28916784

約数和(自身を除く): 9004409

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 875, 1225, 3251, 6125, 16255, 22757, 81275, 113785, 159299, 406375, 568925, 796495, 2844625, 3982475, 19912375]

約数ペア:

[(1, 19912375), (5, 3982475), (7, 2844625), (25, 796495), (35, 568925), (49, 406375), (125, 159299), (175, 113785), (245, 81275), (875, 22757), (1225, 16255), (3251, 6125)]