51881571

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 91353600

約数和(自身を除く): 39472029

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 89, 133, 171, 267, 399, 487, 623, 801, 1197, 1461, 1691, 1869, 3409, 4383, 5073, 5607, 9253, 10227, 11837, 15219, 27759, 30681, 35511, 43343, 64771, 83277, 106533, 130029, 194313, 303401, 390087, 582939, 823517, 910203, 2470551, 2730609, 5764619, 7411653, 17293857, 51881571]

約数ペア:

[(1, 51881571), (3, 17293857), (7, 7411653), (9, 5764619), (19, 2730609), (21, 2470551), (57, 910203), (63, 823517), (89, 582939), (133, 390087), (171, 303401), (267, 194313), (399, 130029), (487, 106533), (623, 83277), (801, 64771), (1197, 43343), (1461, 35511), (1691, 30681), (1869, 27759), (3409, 15219), (4383, 11837), (5073, 10227), (5607, 9253)]