28511217

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2473}}^1$

素因数の和:2550

約数の個数: 32

約数和(自身を含む): 49084160

約数和(自身を除く): 20572943

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 2473, 3843, 7419, 11529, 17311, 22257, 51933, 66771, 150853, 155799, 452559, 467397, 1055971, 1357677, 3167913, 4073031, 9503739, 28511217]

約数ペア:

[(1, 28511217), (3, 9503739), (7, 4073031), (9, 3167913), (21, 1357677), (27, 1055971), (61, 467397), (63, 452559), (183, 155799), (189, 150853), (427, 66771), (549, 51933), (1281, 22257), (1647, 17311), (2473, 11529), (3843, 7419)]