7801209

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 12789504

約数和(自身を除く): 4988295

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 169, 207, 223, 299, 507, 669, 897, 1521, 2007, 2691, 2899, 3887, 5129, 8697, 11661, 15387, 26091, 34983, 37687, 46161, 66677, 113061, 200031, 339183, 600093, 866801, 2600403, 7801209]

約数ペア:

[(1, 7801209), (3, 2600403), (9, 866801), (13, 600093), (23, 339183), (39, 200031), (69, 113061), (117, 66677), (169, 46161), (207, 37687), (223, 34983), (299, 26091), (507, 15387), (669, 11661), (897, 8697), (1521, 5129), (2007, 3887), (2691, 2899)]