28950129

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1447}}^1$

素因数の和:1491

約数の個数: 40

約数和(自身を含む): 49058240

約数和(自身を除く): 20108111

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1447, 1539, 2223, 4341, 6669, 13023, 18811, 20007, 27493, 39069, 56433, 82479, 117207, 169299, 247437, 357409, 507897, 742311, 1072227, 1523691, 2226933, 3216681, 9650043, 28950129]

約数ペア:

[(1, 28950129), (3, 9650043), (9, 3216681), (13, 2226933), (19, 1523691), (27, 1072227), (39, 742311), (57, 507897), (81, 357409), (117, 247437), (171, 169299), (247, 117207), (351, 82479), (513, 56433), (741, 39069), (1053, 27493), (1447, 20007), (1539, 18811), (2223, 13023), (4341, 6669)]