201531771

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{28309}}^1$

素因数の和:28435

約数の個数: 24

約数和(自身を含む): 335643360

約数和(自身を除く): 134111589

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 7119, 28309, 84927, 198163, 254781, 594489, 1783467, 3198917, 9596751, 22392419, 28790253, 67177257, 201531771]

約数ペア:

[(1, 201531771), (3, 67177257), (7, 28790253), (9, 22392419), (21, 9596751), (63, 3198917), (113, 1783467), (339, 594489), (791, 254781), (1017, 198163), (2373, 84927), (7119, 28309)]