1990993823

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{51239}}^1$

素因数の和:51327

約数の個数: 24

約数和(自身を含む): 2535150240

約数和(自身を除く): 544156417

約数列:

[1, 7, 13, 49, 61, 91, 427, 637, 793, 2989, 5551, 38857, 51239, 358673, 666107, 2510711, 3125579, 4662749, 21879053, 32639243, 40632527, 153153371, 284427689, 1990993823]

約数ペア:

[(1, 1990993823), (7, 284427689), (13, 153153371), (49, 40632527), (61, 32639243), (91, 21879053), (427, 4662749), (637, 3125579), (793, 2510711), (2989, 666107), (5551, 358673), (38857, 51239)]