217876971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{10139}}^1$

素因数の和:10203

約数の個数: 32

約数和(自身を含む): 340704000

約数和(自身を除く): 122827029

約数列:

[1, 3, 13, 19, 29, 39, 57, 87, 247, 377, 551, 741, 1131, 1653, 7163, 10139, 21489, 30417, 131807, 192641, 294031, 395421, 577923, 882093, 2504333, 3822403, 5586589, 7512999, 11467209, 16759767, 72625657, 217876971]

約数ペア:

[(1, 217876971), (3, 72625657), (13, 16759767), (19, 11467209), (29, 7512999), (39, 5586589), (57, 3822403), (87, 2504333), (247, 882093), (377, 577923), (551, 395421), (741, 294031), (1131, 192641), (1653, 131807), (7163, 30417), (10139, 21489)]