19958902911

素因数分解:

$3^2\times {\mathrm{809}}^1\times {\mathrm{2741231}}^1$

素因数の和:2742046

約数の個数: 12

約数和(自身を含む): 28865172960

約数和(自身を除く): 8906270049

約数列:

[1, 3, 9, 809, 2427, 7281, 2741231, 8223693, 24671079, 2217655879, 6652967637, 19958902911]

約数ペア:

[(1, 19958902911), (3, 6652967637), (9, 2217655879), (809, 24671079), (2427, 8223693), (7281, 2741231)]