21034270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123731}}^1$

素因数の和:123755

約数の個数: 16

約数和(自身を含む): 40089168

約数和(自身を除く): 19054898

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123731, 247462, 618655, 1237310, 2103427, 4206854, 10517135, 21034270]

約数ペア:

[(1, 21034270), (2, 10517135), (5, 4206854), (10, 2103427), (17, 1237310), (34, 618655), (85, 247462), (170, 123731)]