51321555

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{919}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 95584320

約数和(自身を除く): 44262765

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 73, 85, 153, 219, 255, 365, 657, 765, 919, 1095, 1241, 2757, 3285, 3723, 4595, 6205, 8271, 11169, 13785, 15623, 18615, 41355, 46869, 55845, 67087, 78115, 140607, 201261, 234345, 335435, 603783, 703035, 1006305, 1140479, 3018915, 3421437, 5702395, 10264311, 17107185, 51321555]

約数ペア:

[(1, 51321555), (3, 17107185), (5, 10264311), (9, 5702395), (15, 3421437), (17, 3018915), (45, 1140479), (51, 1006305), (73, 703035), (85, 603783), (153, 335435), (219, 234345), (255, 201261), (365, 140607), (657, 78115), (765, 67087), (919, 55845), (1095, 46869), (1241, 41355), (2757, 18615), (3285, 15623), (3723, 13785), (4595, 11169), (6205, 8271)]