18655335

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 34265088

約数和(自身を除く): 15609753

約数列:

[1, 3, 5, 9, 15, 31, 43, 45, 93, 129, 155, 215, 279, 311, 387, 465, 645, 933, 1333, 1395, 1555, 1935, 2799, 3999, 4665, 6665, 9641, 11997, 13373, 13995, 19995, 28923, 40119, 48205, 59985, 66865, 86769, 120357, 144615, 200595, 414563, 433845, 601785, 1243689, 2072815, 3731067, 6218445, 18655335]

約数ペア:

[(1, 18655335), (3, 6218445), (5, 3731067), (9, 2072815), (15, 1243689), (31, 601785), (43, 433845), (45, 414563), (93, 200595), (129, 144615), (155, 120357), (215, 86769), (279, 66865), (311, 59985), (387, 48205), (465, 40119), (645, 28923), (933, 19995), (1333, 13995), (1395, 13373), (1555, 11997), (1935, 9641), (2799, 6665), (3999, 4665)]