20684705

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{107}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 26796096

約数和(自身を除く): 6111391

約数列:

[1, 5, 23, 41, 107, 115, 205, 535, 943, 1681, 2461, 4387, 4715, 8405, 12305, 21935, 38663, 100901, 179867, 193315, 504505, 899335, 4136941, 20684705]

約数ペア:

[(1, 20684705), (5, 4136941), (23, 899335), (41, 504505), (107, 193315), (115, 179867), (205, 100901), (535, 38663), (943, 21935), (1681, 12305), (2461, 8405), (4387, 4715)]