21954009

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13577}}^1$

素因数の和:13605

約数の個数: 24

約数和(自身を含む): 37149408

約数和(自身を除く): 15195399

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13577, 40731, 95039, 149347, 285117, 448041, 665273, 1045429, 1995819, 3136287, 7318003, 21954009]

約数ペア:

[(1, 21954009), (3, 7318003), (7, 3136287), (11, 1995819), (21, 1045429), (33, 665273), (49, 448041), (77, 285117), (147, 149347), (231, 95039), (539, 40731), (1617, 13577)]