20013427

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{631}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 24026112

約数和(自身を除く): 4012685

約数列:

[1, 7, 23, 161, 197, 631, 1379, 4417, 4531, 14513, 31717, 101591, 124307, 870149, 2859061, 20013427]

約数ペア:

[(1, 20013427), (7, 2859061), (23, 870149), (161, 124307), (197, 101591), (631, 31717), (1379, 14513), (4417, 4531)]