20394031

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 4088273

約数列:

[1, 7, 23, 161, 197, 643, 1379, 4501, 4531, 14789, 31717, 103523, 126671, 886697, 2913433, 20394031]

約数ペア:

[(1, 20394031), (7, 2913433), (23, 886697), (161, 126671), (197, 103523), (643, 31717), (1379, 14789), (4501, 4531)]