21103052

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 20410420

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 103, 131, 206, 262, 391, 412, 524, 782, 1564, 1751, 2227, 2369, 3013, 3502, 4454, 4738, 6026, 7004, 8908, 9476, 12052, 13493, 26986, 40273, 51221, 53972, 80546, 102442, 161092, 204884, 229381, 310339, 458762, 620678, 917524, 1241356, 5275763, 10551526, 21103052]

約数ペア:

[(1, 21103052), (2, 10551526), (4, 5275763), (17, 1241356), (23, 917524), (34, 620678), (46, 458762), (68, 310339), (92, 229381), (103, 204884), (131, 161092), (206, 102442), (262, 80546), (391, 53972), (412, 51221), (524, 40273), (782, 26986), (1564, 13493), (1751, 12052), (2227, 9476), (2369, 8908), (3013, 7004), (3502, 6026), (4454, 4738)]