21762118

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 16703162

約数列:

[1, 2, 7, 14, 53, 106, 139, 211, 278, 371, 422, 742, 973, 1477, 1946, 2954, 7367, 11183, 14734, 22366, 29329, 51569, 58658, 78281, 103138, 156562, 205303, 410606, 1554437, 3108874, 10881059, 21762118]

約数ペア:

[(1, 21762118), (2, 10881059), (7, 3108874), (14, 1554437), (53, 410606), (106, 205303), (139, 156562), (211, 103138), (278, 78281), (371, 58658), (422, 51569), (742, 29329), (973, 22366), (1477, 14734), (1946, 11183), (2954, 7367)]