20486791

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:670

約数の個数: 16

約数和(自身を含む): 22954624

約数和(自身を除く): 2467833

約数列:

[1, 13, 43, 67, 547, 559, 871, 2881, 7111, 23521, 36649, 37453, 305773, 476437, 1575907, 20486791]

約数ペア:

[(1, 20486791), (13, 1575907), (43, 476437), (67, 305773), (547, 37453), (559, 36649), (871, 23521), (2881, 7111)]