21120274

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3533}}^1$

素因数の和:3610

約数の個数: 24

約数和(自身を含む): 37467468

約数和(自身を除く): 16347194

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 3533, 5978, 7066, 24731, 49462, 173117, 215513, 346234, 431026, 1508591, 3017182, 10560137, 21120274]

約数ペア:

[(1, 21120274), (2, 10560137), (7, 3017182), (14, 1508591), (49, 431026), (61, 346234), (98, 215513), (122, 173117), (427, 49462), (854, 24731), (2989, 7066), (3533, 5978)]