21090627

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4253}}^1$

素因数の和:4307

約数の個数: 24

約数和(自身を含む): 33181200

約数和(自身を除く): 12090573

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4253, 4959, 12759, 38277, 80807, 123337, 242421, 370011, 727263, 1110033, 2343403, 7030209, 21090627]

約数ペア:

[(1, 21090627), (3, 7030209), (9, 2343403), (19, 1110033), (29, 727263), (57, 370011), (87, 242421), (171, 123337), (261, 80807), (551, 38277), (1653, 12759), (4253, 4959)]