21052535

素因数分解:

$5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{7247}}^1$

素因数の和:7342

約数の個数: 16

約数和(自身を含む): 29223936

約数和(自身を除く): 8171401

約数列:

[1, 5, 7, 35, 83, 415, 581, 2905, 7247, 36235, 50729, 253645, 601501, 3007505, 4210507, 21052535]

約数ペア:

[(1, 21052535), (5, 4210507), (7, 3007505), (35, 601501), (83, 253645), (415, 50729), (581, 36235), (2905, 7247)]