21072887421

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{887}}^1\times {\mathrm{465833}}^1$

素因数の和:466740

約数の個数: 16

約数和(自身を含む): 29783562624

約数和(自身を除く): 8710675203

約数列:

[1, 3, 17, 51, 887, 2661, 15079, 45237, 465833, 1397499, 7919161, 23757483, 413193871, 1239581613, 7024295807, 21072887421]

約数ペア:

[(1, 21072887421), (3, 7024295807), (17, 1239581613), (51, 413193871), (887, 23757483), (2661, 7919161), (15079, 1397499), (45237, 465833)]