21685826

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 24

約数和(自身を含む): 34507200

約数和(自身を除く): 12821374

約数列:

[1, 2, 23, 46, 103, 199, 206, 398, 529, 1058, 2369, 4577, 4738, 9154, 20497, 40994, 54487, 105271, 108974, 210542, 471431, 942862, 10842913, 21685826]

約数ペア:

[(1, 21685826), (2, 10842913), (23, 942862), (46, 471431), (103, 210542), (199, 108974), (206, 105271), (398, 54487), (529, 40994), (1058, 20497), (2369, 9154), (4577, 4738)]