279636861

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1\times {\mathrm{739}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 439121920

約数和(自身を除く): 159485059

約数列:

[1, 3, 7, 21, 37, 111, 259, 487, 739, 777, 1461, 2217, 3409, 5173, 10227, 15519, 18019, 27343, 54057, 82029, 126133, 191401, 359893, 378399, 574203, 1079679, 2519251, 7557753, 13316041, 39948123, 93212287, 279636861]

約数ペア:

[(1, 279636861), (3, 93212287), (7, 39948123), (21, 13316041), (37, 7557753), (111, 2519251), (259, 1079679), (487, 574203), (739, 378399), (777, 359893), (1461, 191401), (2217, 126133), (3409, 82029), (5173, 54057), (10227, 27343), (15519, 18019)]