19890935

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{971}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 25404192

約数和(自身を除く): 5513257

約数列:

[1, 5, 17, 85, 241, 971, 1205, 4097, 4855, 16507, 20485, 82535, 234011, 1170055, 3978187, 19890935]

約数ペア:

[(1, 19890935), (5, 3978187), (17, 1170055), (85, 234011), (241, 82535), (971, 20485), (1205, 16507), (4097, 4855)]