291260553381

素因数分解:

$3^4\times 7^1\times {\mathrm{513687043}}^1$

素因数の和:513687062

約数の個数: 20

約数和(自身を含む): 497249058592

約数和(自身を除く): 205988505211

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 513687043, 1541061129, 3595809301, 4623183387, 10787427903, 13869550161, 32362283709, 41608650483, 97086851127, 291260553381]

約数ペア:

[(1, 291260553381), (3, 97086851127), (7, 41608650483), (9, 32362283709), (21, 13869550161), (27, 10787427903), (63, 4623183387), (81, 3595809301), (189, 1541061129), (567, 513687043)]