31115187

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 49297248

約数和(自身を除く): 18182061

約数列:

[1, 3, 9, 37, 41, 43, 53, 111, 123, 129, 159, 333, 369, 387, 477, 1517, 1591, 1763, 1961, 2173, 2279, 4551, 4773, 5289, 5883, 6519, 6837, 13653, 14319, 15867, 17649, 19557, 20511, 65231, 80401, 84323, 93439, 195693, 241203, 252969, 280317, 587079, 723609, 758907, 840951, 3457243, 10371729, 31115187]

約数ペア:

[(1, 31115187), (3, 10371729), (9, 3457243), (37, 840951), (41, 758907), (43, 723609), (53, 587079), (111, 280317), (123, 252969), (129, 241203), (159, 195693), (333, 93439), (369, 84323), (387, 80401), (477, 65231), (1517, 20511), (1591, 19557), (1763, 17649), (1961, 15867), (2173, 14319), (2279, 13653), (4551, 6837), (4773, 6519), (5289, 5883)]