21896667

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 36341760

約数和(自身を除く): 14445093

約数列:

[1, 3, 9, 13, 23, 39, 69, 79, 103, 117, 207, 237, 299, 309, 711, 897, 927, 1027, 1339, 1817, 2369, 2691, 3081, 4017, 5451, 7107, 8137, 9243, 12051, 16353, 21321, 23621, 24411, 30797, 70863, 73233, 92391, 105781, 187151, 212589, 277173, 317343, 561453, 952029, 1684359, 2432963, 7298889, 21896667]

約数ペア:

[(1, 21896667), (3, 7298889), (9, 2432963), (13, 1684359), (23, 952029), (39, 561453), (69, 317343), (79, 277173), (103, 212589), (117, 187151), (207, 105781), (237, 92391), (299, 73233), (309, 70863), (711, 30797), (897, 24411), (927, 23621), (1027, 21321), (1339, 16353), (1817, 12051), (2369, 9243), (2691, 8137), (3081, 7107), (4017, 5451)]