12221979

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 20507136

約数和(自身を除く): 8285157

約数列:

[1, 3, 7, 11, 21, 33, 77, 157, 231, 337, 471, 1011, 1099, 1727, 2359, 3297, 3707, 5181, 7077, 11121, 12089, 25949, 36267, 52909, 77847, 158727, 370363, 581999, 1111089, 1745997, 4073993, 12221979]

約数ペア:

[(1, 12221979), (3, 4073993), (7, 1745997), (11, 1111089), (21, 581999), (33, 370363), (77, 158727), (157, 77847), (231, 52909), (337, 36267), (471, 25949), (1011, 12089), (1099, 11121), (1727, 7077), (2359, 5181), (3297, 3707)]