28386761

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 32852160

約数和(自身を除く): 4465399

約数列:

[1, 13, 23, 67, 109, 169, 299, 871, 1417, 1541, 2507, 3887, 7303, 11323, 18421, 20033, 32591, 94939, 167969, 260429, 423683, 1234207, 2183597, 28386761]

約数ペア:

[(1, 28386761), (13, 2183597), (23, 1234207), (67, 423683), (109, 260429), (169, 167969), (299, 94939), (871, 32591), (1417, 20033), (1541, 18421), (2507, 11323), (3887, 7303)]