16985017

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2153}}^1$

素因数の和:2197

約数の個数: 16

約数和(自身を含む): 20678400

約数和(自身を除く): 3693383

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2153, 7889, 15071, 49519, 105497, 346633, 738479, 2426431, 16985017]

約数ペア:

[(1, 16985017), (7, 2426431), (23, 738479), (49, 346633), (161, 105497), (343, 49519), (1127, 15071), (2153, 7889)]