18666685

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 24820992

約数和(自身を除く): 6154307

約数列:

[1, 5, 23, 37, 41, 107, 115, 185, 205, 535, 851, 943, 1517, 2461, 3959, 4255, 4387, 4715, 7585, 12305, 19795, 21935, 34891, 91057, 100901, 162319, 174455, 455285, 504505, 811595, 3733337, 18666685]

約数ペア:

[(1, 18666685), (5, 3733337), (23, 811595), (37, 504505), (41, 455285), (107, 174455), (115, 162319), (185, 100901), (205, 91057), (535, 34891), (851, 21935), (943, 19795), (1517, 12305), (2461, 7585), (3959, 4715), (4255, 4387)]