21187023

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 34784640

約数和(自身を除く): 13597617

約数列:

[1, 3, 11, 13, 29, 33, 39, 87, 131, 143, 169, 319, 377, 393, 429, 507, 957, 1131, 1441, 1703, 1859, 3799, 4147, 4323, 4901, 5109, 5577, 11397, 12441, 14703, 18733, 22139, 41789, 49387, 53911, 56199, 66417, 125367, 148161, 161733, 243529, 543257, 642031, 730587, 1629771, 1926093, 7062341, 21187023]

約数ペア:

[(1, 21187023), (3, 7062341), (11, 1926093), (13, 1629771), (29, 730587), (33, 642031), (39, 543257), (87, 243529), (131, 161733), (143, 148161), (169, 125367), (319, 66417), (377, 56199), (393, 53911), (429, 49387), (507, 41789), (957, 22139), (1131, 18733), (1441, 14703), (1703, 12441), (1859, 11397), (3799, 5577), (4147, 5109), (4323, 4901)]