81985222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 136857600

約数和(自身を除く): 54872378

約数列:

[1, 2, 11, 22, 109, 179, 191, 218, 358, 382, 1199, 1969, 2101, 2398, 3938, 4202, 19511, 20819, 34189, 39022, 41638, 68378, 214621, 229009, 376079, 429242, 458018, 752158, 3726601, 7453202, 40992611, 81985222]

約数ペア:

[(1, 81985222), (2, 40992611), (11, 7453202), (22, 3726601), (109, 752158), (179, 458018), (191, 429242), (218, 376079), (358, 229009), (382, 214621), (1199, 68378), (1969, 41638), (2101, 39022), (2398, 34189), (3938, 20819), (4202, 19511)]