217428211

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2617}}^1$

素因数の和:2731

約数の個数: 32

約数和(自身を含む): 295561728

約数和(自身を除く): 78133517

約数列:

[1, 7, 11, 13, 77, 83, 91, 143, 581, 913, 1001, 1079, 2617, 6391, 7553, 11869, 18319, 28787, 34021, 83083, 201509, 217211, 238147, 374231, 1520477, 2389321, 2619617, 2823743, 16725247, 19766201, 31061173, 217428211]

約数ペア:

[(1, 217428211), (7, 31061173), (11, 19766201), (13, 16725247), (77, 2823743), (83, 2619617), (91, 2389321), (143, 1520477), (581, 374231), (913, 238147), (1001, 217211), (1079, 201509), (2617, 83083), (6391, 34021), (7553, 28787), (11869, 18319)]