12821073265

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2561653}}^1$

素因数の和:2561689

約数の個数: 32

約数和(自身を含む): 20657177856

約数和(自身を除く): 7836104591

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 2561653, 12808265, 17931571, 28178183, 33301489, 89657855, 140890915, 166507445, 197247281, 233110423, 366316379, 986236405, 1165552115, 1831581895, 2564214653, 12821073265]

約数ペア:

[(1, 12821073265), (5, 2564214653), (7, 1831581895), (11, 1165552115), (13, 986236405), (35, 366316379), (55, 233110423), (65, 197247281), (77, 166507445), (91, 140890915), (143, 89657855), (385, 33301489), (455, 28178183), (715, 17931571), (1001, 12808265), (5005, 2561653)]