21274297

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{313}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 24054912

約数和(自身を除く): 2780615

約数列:

[1, 11, 37, 167, 313, 407, 1837, 3443, 6179, 11581, 52271, 67969, 127391, 574981, 1934027, 21274297]

約数ペア:

[(1, 21274297), (11, 1934027), (37, 574981), (167, 127391), (313, 67969), (407, 52271), (1837, 11581), (3443, 6179)]