21605299

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 23733280

約数和(自身を除く): 2127981

約数列:

[1, 19, 37, 73, 421, 703, 1387, 2701, 7999, 15577, 30733, 51319, 295963, 583927, 1137121, 21605299]

約数ペア:

[(1, 21605299), (19, 1137121), (37, 583927), (73, 295963), (421, 51319), (703, 30733), (1387, 15577), (2701, 7999)]