2981176317

素因数分解:

$3^2\times 7^2\times {\mathrm{6760037}}^1$

素因数の和:6760057

約数の個数: 18

約数和(自身を含む): 5009188158

約数和(自身を除く): 2028011841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 6760037, 20280111, 47320259, 60840333, 141960777, 331241813, 425882331, 993725439, 2981176317]

約数ペア:

[(1, 2981176317), (3, 993725439), (7, 425882331), (9, 331241813), (21, 141960777), (49, 60840333), (63, 47320259), (147, 20280111), (441, 6760037)]