18972867

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3413}}^1$

素因数の和:3542

約数の個数: 16

約数和(自身を含む): 27038880

約数和(自身を除く): 8066013

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3413, 5559, 10239, 58021, 174063, 372017, 1116051, 6324289, 18972867]

約数ペア:

[(1, 18972867), (3, 6324289), (17, 1116051), (51, 372017), (109, 174063), (327, 58021), (1853, 10239), (3413, 5559)]