520490529

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21491}}^1$

素因数の和:21539

約数の個数: 40

約数和(自身を含む): 873778752

約数和(自身を除く): 353288223

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1863, 2691, 8073, 21491, 24219, 64473, 193419, 279383, 494293, 580257, 838149, 1482879, 1740771, 2514447, 4448637, 6425809, 7543341, 13345911, 19277427, 22630023, 40037733, 57832281, 173496843, 520490529]

約数ペア:

[(1, 520490529), (3, 173496843), (9, 57832281), (13, 40037733), (23, 22630023), (27, 19277427), (39, 13345911), (69, 7543341), (81, 6425809), (117, 4448637), (207, 2514447), (299, 1740771), (351, 1482879), (621, 838149), (897, 580257), (1053, 494293), (1863, 279383), (2691, 193419), (8073, 64473), (21491, 24219)]