21182105

素因数分解:

$5^1\times 7^1\times {\mathrm{769}}^1\times {\mathrm{787}}^1$

素因数の和:1568

約数の個数: 16

約数和(自身を含む): 29124480

約数和(自身を除く): 7942375

約数列:

[1, 5, 7, 35, 769, 787, 3845, 3935, 5383, 5509, 26915, 27545, 605203, 3026015, 4236421, 21182105]

約数ペア:

[(1, 21182105), (5, 4236421), (7, 3026015), (35, 605203), (769, 27545), (787, 26915), (3845, 5509), (3935, 5383)]