664677

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 36

約数和(自身を含む): 1141920

約数和(自身を除く): 477243

約数列:

[1, 3, 9, 13, 19, 23, 39, 57, 69, 117, 169, 171, 207, 247, 299, 437, 507, 741, 897, 1311, 1521, 2223, 2691, 3211, 3887, 3933, 5681, 9633, 11661, 17043, 28899, 34983, 51129, 73853, 221559, 664677]

約数ペア:

[(1, 664677), (3, 221559), (9, 73853), (13, 51129), (19, 34983), (23, 28899), (39, 17043), (57, 11661), (69, 9633), (117, 5681), (169, 3933), (171, 3887), (207, 3211), (247, 2691), (299, 2223), (437, 1521), (507, 1311), (741, 897)]