18949910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1283}}^1$

素因数の和:1508

約数の個数: 32

約数和(自身を含む): 39197952

約数和(自身を除く): 20248042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1283, 1477, 2110, 2566, 2954, 6415, 7385, 8981, 12830, 14770, 17962, 44905, 89810, 270713, 541426, 1353565, 1894991, 2707130, 3789982, 9474955, 18949910]

約数ペア:

[(1, 18949910), (2, 9474955), (5, 3789982), (7, 2707130), (10, 1894991), (14, 1353565), (35, 541426), (70, 270713), (211, 89810), (422, 44905), (1055, 17962), (1283, 14770), (1477, 12830), (2110, 8981), (2566, 7385), (2954, 6415)]