81147987

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1961

約数の個数: 40

約数和(自身を含む): 132561792

約数和(自身を除く): 51413805

約数列:

[1, 3, 9, 17, 27, 31, 51, 81, 93, 153, 279, 459, 527, 837, 1377, 1581, 1901, 2511, 4743, 5703, 14229, 17109, 32317, 42687, 51327, 58931, 96951, 153981, 176793, 290853, 530379, 872559, 1001827, 1591137, 2617677, 3005481, 4773411, 9016443, 27049329, 81147987]

約数ペア:

[(1, 81147987), (3, 27049329), (9, 9016443), (17, 4773411), (27, 3005481), (31, 2617677), (51, 1591137), (81, 1001827), (93, 872559), (153, 530379), (279, 290853), (459, 176793), (527, 153981), (837, 96951), (1377, 58931), (1581, 51327), (1901, 42687), (2511, 32317), (4743, 17109), (5703, 14229)]