19816665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1447}}^1$

素因数の和:1549

約数の個数: 32

約数和(自身を含む): 35030016

約数和(自身を除く): 15213351

約数列:

[1, 3, 5, 11, 15, 33, 55, 83, 165, 249, 415, 913, 1245, 1447, 2739, 4341, 4565, 7235, 13695, 15917, 21705, 47751, 79585, 120101, 238755, 360303, 600505, 1321111, 1801515, 3963333, 6605555, 19816665]

約数ペア:

[(1, 19816665), (3, 6605555), (5, 3963333), (11, 1801515), (15, 1321111), (33, 600505), (55, 360303), (83, 238755), (165, 120101), (249, 79585), (415, 47751), (913, 21705), (1245, 15917), (1447, 13695), (2739, 7235), (4341, 4565)]