20641144

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{593}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 40986000

約数和(自身を除く): 20344856

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 229, 458, 593, 916, 1186, 1832, 2372, 4351, 4744, 8702, 11267, 17404, 22534, 34808, 45068, 90136, 135797, 271594, 543188, 1086376, 2580143, 5160286, 10320572, 20641144]

約数ペア:

[(1, 20641144), (2, 10320572), (4, 5160286), (8, 2580143), (19, 1086376), (38, 543188), (76, 271594), (152, 135797), (229, 90136), (458, 45068), (593, 34808), (916, 22534), (1186, 17404), (1832, 11267), (2372, 8702), (4351, 4744)]