21059916115

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{343639}}^1$

素因数の和:343771

約数の個数: 32

約数和(自身を含む): 30878115840

約数和(自身を除く): 9818199725

約数列:

[1, 5, 7, 17, 35, 85, 103, 119, 515, 595, 721, 1751, 3605, 8755, 12257, 61285, 343639, 1718195, 2405473, 5841863, 12027365, 29209315, 35394817, 40893041, 176974085, 204465205, 247763719, 601711889, 1238818595, 3008559445, 4211983223, 21059916115]

約数ペア:

[(1, 21059916115), (5, 4211983223), (7, 3008559445), (17, 1238818595), (35, 601711889), (85, 247763719), (103, 204465205), (119, 176974085), (515, 40893041), (595, 35394817), (721, 29209315), (1751, 12027365), (3605, 5841863), (8755, 2405473), (12257, 1718195), (61285, 343639)]