12221222

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 32

約数和(自身を含む): 20587392

約数和(自身を除く): 8366170

約数列:

[1, 2, 13, 26, 47, 73, 94, 137, 146, 274, 611, 949, 1222, 1781, 1898, 3431, 3562, 6439, 6862, 10001, 12878, 20002, 44603, 83707, 89206, 130013, 167414, 260026, 470047, 940094, 6110611, 12221222]

約数ペア:

[(1, 12221222), (2, 6110611), (13, 940094), (26, 470047), (47, 260026), (73, 167414), (94, 130013), (137, 89206), (146, 83707), (274, 44603), (611, 20002), (949, 12878), (1222, 10001), (1781, 6862), (1898, 6439), (3431, 3562)]