20748105

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65867}}^1$

素因数の和:65885

約数の個数: 24

約数和(自身を含む): 41101632

約数和(自身を除く): 20353527

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65867, 197601, 329335, 461069, 592803, 988005, 1383207, 2305345, 2964015, 4149621, 6916035, 20748105]

約数ペア:

[(1, 20748105), (3, 6916035), (5, 4149621), (7, 2964015), (9, 2305345), (15, 1383207), (21, 988005), (35, 592803), (45, 461069), (63, 329335), (105, 197601), (315, 65867)]