21903123

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{39043}}^1$

素因数の和:39074

約数の個数: 16

約数和(自身を含む): 33734016

約数和(自身を除く): 11830893

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 39043, 117129, 429473, 663731, 1288419, 1991193, 7301041, 21903123]

約数ペア:

[(1, 21903123), (3, 7301041), (11, 1991193), (17, 1288419), (33, 663731), (51, 429473), (187, 117129), (561, 39043)]