201111911

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6481}}^1$

素因数の和:6543

約数の個数: 32

約数和(自身を含む): 278777856

約数和(自身を除く): 77665945

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 1001, 2387, 2821, 4433, 6481, 31031, 45367, 71291, 84253, 200911, 499037, 589771, 926783, 1406377, 2210021, 2611843, 6487481, 15470147, 18282901, 28730273, 201111911]

約数ペア:

[(1, 201111911), (7, 28730273), (11, 18282901), (13, 15470147), (31, 6487481), (77, 2611843), (91, 2210021), (143, 1406377), (217, 926783), (341, 589771), (403, 499037), (1001, 200911), (2387, 84253), (2821, 71291), (4433, 45367), (6481, 31031)]