21800848

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1$

素因数の和:415

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 21946352

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 167, 199, 328, 334, 398, 656, 668, 796, 1336, 1592, 2672, 3184, 6847, 8159, 13694, 16318, 27388, 32636, 33233, 54776, 65272, 66466, 109552, 130544, 132932, 265864, 531728, 1362553, 2725106, 5450212, 10900424, 21800848]

約数ペア:

[(1, 21800848), (2, 10900424), (4, 5450212), (8, 2725106), (16, 1362553), (41, 531728), (82, 265864), (164, 132932), (167, 130544), (199, 109552), (328, 66466), (334, 65272), (398, 54776), (656, 33233), (668, 32636), (796, 27388), (1336, 16318), (1592, 13694), (2672, 8159), (3184, 6847)]