11222211

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 20837376

約数和(自身を除く): 9615165

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 77, 91, 101, 111, 143, 231, 259, 273, 303, 407, 429, 481, 707, 777, 1001, 1111, 1221, 1313, 1443, 2121, 2849, 3003, 3333, 3367, 3737, 3939, 5291, 7777, 8547, 9191, 10101, 11211, 14443, 15873, 23331, 26159, 27573, 37037, 41107, 43329, 48581, 78477, 101101, 111111, 123321, 145743, 287749, 303303, 340067, 534391, 863247, 1020201, 1603173, 3740737, 11222211]

約数ペア:

[(1, 11222211), (3, 3740737), (7, 1603173), (11, 1020201), (13, 863247), (21, 534391), (33, 340067), (37, 303303), (39, 287749), (77, 145743), (91, 123321), (101, 111111), (111, 101101), (143, 78477), (231, 48581), (259, 43329), (273, 41107), (303, 37037), (407, 27573), (429, 26159), (481, 23331), (707, 15873), (777, 14443), (1001, 11211), (1111, 10101), (1221, 9191), (1313, 8547), (1443, 7777), (2121, 5291), (2849, 3939), (3003, 3737), (3333, 3367)]