21243310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{617}}^1$

素因数の和:948

約数の個数: 32

約数和(自身を含む): 41915232

約数和(自身を除く): 20671922

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 313, 617, 626, 1234, 1565, 3085, 3130, 3443, 6170, 6787, 6886, 13574, 17215, 33935, 34430, 67870, 193121, 386242, 965605, 1931210, 2124331, 4248662, 10621655, 21243310]

約数ペア:

[(1, 21243310), (2, 10621655), (5, 4248662), (10, 2124331), (11, 1931210), (22, 965605), (55, 386242), (110, 193121), (313, 67870), (617, 34430), (626, 33935), (1234, 17215), (1565, 13574), (3085, 6886), (3130, 6787), (3443, 6170)]