18929533

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 23158872

約数和(自身を除く): 4229339

約数列:

[1, 7, 37, 49, 53, 197, 259, 371, 1379, 1813, 1961, 2597, 7289, 9653, 10441, 13727, 51023, 73087, 96089, 357161, 386317, 511609, 2704219, 18929533]

約数ペア:

[(1, 18929533), (7, 2704219), (37, 511609), (49, 386317), (53, 357161), (197, 96089), (259, 73087), (371, 51023), (1379, 13727), (1813, 10441), (1961, 9653), (2597, 7289)]