18745929

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 27747720

約数和(自身を除く): 9001791

約数列:

[1, 3, 9, 97, 109, 197, 291, 327, 591, 873, 981, 1773, 10573, 19109, 21473, 31719, 57327, 64419, 95157, 171981, 193257, 2082881, 6248643, 18745929]

約数ペア:

[(1, 18745929), (3, 6248643), (9, 2082881), (97, 193257), (109, 171981), (197, 95157), (291, 64419), (327, 57327), (591, 31719), (873, 21473), (981, 19109), (1773, 10573)]