21303538705

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{369821}}^1$

素因数の和:370148

約数の個数: 16

約数和(自身を含む): 26281030608

約数和(自身を除く): 4977491903

約数列:

[1, 5, 41, 205, 281, 1405, 11521, 57605, 369821, 1849105, 15162661, 75813305, 103919701, 519598505, 4260707741, 21303538705]

約数ペア:

[(1, 21303538705), (5, 4260707741), (41, 519598505), (205, 103919701), (281, 75813305), (1405, 15162661), (11521, 1849105), (57605, 369821)]