18680991

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{38677}}^1$

素因数の和:38710

約数の個数: 16

約数和(自身を含む): 29704704

約数和(自身を除く): 11023713

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 38677, 116031, 270739, 812217, 889571, 2668713, 6226997, 18680991]

約数ペア:

[(1, 18680991), (3, 6226997), (7, 2668713), (21, 889571), (23, 812217), (69, 270739), (161, 116031), (483, 38677)]