638978049

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{16981}}^1$

素因数の和:17137

約数の個数: 24

約数和(自身を含む): 956358312

約数和(自身を除く): 317380263

約数列:

[1, 3, 9, 37, 111, 113, 333, 339, 1017, 4181, 12543, 16981, 37629, 50943, 152829, 628297, 1884891, 1918853, 5654673, 5756559, 17269677, 70997561, 212992683, 638978049]

約数ペア:

[(1, 638978049), (3, 212992683), (9, 70997561), (37, 17269677), (111, 5756559), (113, 5654673), (333, 1918853), (339, 1884891), (1017, 628297), (4181, 152829), (12543, 50943), (16981, 37629)]