18638415

素因数分解:

$3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1733}}^1$

素因数の和:1983

約数の個数: 24

約数和(自身を含む): 32460480

約数和(自身を除く): 13822065

約数列:

[1, 3, 5, 9, 15, 45, 239, 717, 1195, 1733, 2151, 3585, 5199, 8665, 10755, 15597, 25995, 77985, 414187, 1242561, 2070935, 3727683, 6212805, 18638415]

約数ペア:

[(1, 18638415), (3, 6212805), (5, 3727683), (9, 2070935), (15, 1242561), (45, 414187), (239, 77985), (717, 25995), (1195, 15597), (1733, 10755), (2151, 8665), (3585, 5199)]