28789101

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 47625600

約数和(自身を除く): 18836499

約数列:

[1, 3, 9, 11, 27, 33, 79, 81, 99, 237, 297, 409, 711, 869, 891, 1227, 2133, 2607, 3681, 4499, 6399, 7821, 11043, 13497, 23463, 32311, 33129, 40491, 70389, 96933, 121473, 290799, 355421, 364419, 872397, 1066263, 2617191, 3198789, 9596367, 28789101]

約数ペア:

[(1, 28789101), (3, 9596367), (9, 3198789), (11, 2617191), (27, 1066263), (33, 872397), (79, 364419), (81, 355421), (99, 290799), (237, 121473), (297, 96933), (409, 70389), (711, 40491), (869, 33129), (891, 32311), (1227, 23463), (2133, 13497), (2607, 11043), (3681, 7821), (4499, 6399)]