20985729

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9811}}^1$

素因数の和:9868

約数の個数: 16

約数和(自身を含む): 30142464

約数和(自身を除く): 9156735

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9811, 29433, 225653, 304141, 676959, 912423, 6995243, 20985729]

約数ペア:

[(1, 20985729), (3, 6995243), (23, 912423), (31, 676959), (69, 304141), (93, 225653), (713, 29433), (2139, 9811)]