87139107

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{23789}}^1$

素因数の和:23843

約数の個数: 24

約数和(自身を含む): 141027120

約数和(自身を除く): 53888013

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 23789, 71367, 214101, 261679, 785037, 880193, 2355111, 2640579, 7921737, 9682123, 29046369, 87139107]

約数ペア:

[(1, 87139107), (3, 29046369), (9, 9682123), (11, 7921737), (33, 2640579), (37, 2355111), (99, 880193), (111, 785037), (333, 261679), (407, 214101), (1221, 71367), (3663, 23789)]