21789435

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 36790272

約数和(自身を除く): 15000837

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 235, 465, 705, 997, 1457, 2991, 4371, 4985, 7285, 14955, 21855, 30907, 46859, 92721, 140577, 154535, 234295, 463605, 702885, 1452629, 4357887, 7263145, 21789435]

約数ペア:

[(1, 21789435), (3, 7263145), (5, 4357887), (15, 1452629), (31, 702885), (47, 463605), (93, 234295), (141, 154535), (155, 140577), (235, 92721), (465, 46859), (705, 30907), (997, 21855), (1457, 14955), (2991, 7285), (4371, 4985)]