21467733

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3947}}^1$

素因数の和:4001

約数の個数: 24

約数和(自身を含む): 34205472

約数和(自身を除く): 12737739

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3947, 5439, 11841, 27629, 82887, 146039, 193403, 438117, 580209, 1022273, 3066819, 7155911, 21467733]

約数ペア:

[(1, 21467733), (3, 7155911), (7, 3066819), (21, 1022273), (37, 580209), (49, 438117), (111, 193403), (147, 146039), (259, 82887), (777, 27629), (1813, 11841), (3947, 5439)]