18998841

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2237}}^1$

素因数の和:2408

約数の個数: 16

約数和(自身を含む): 26856000

約数和(自身を除く): 7857159

約数列:

[1, 3, 19, 57, 149, 447, 2237, 2831, 6711, 8493, 42503, 127509, 333313, 999939, 6332947, 18998841]

約数ペア:

[(1, 18998841), (3, 6332947), (19, 999939), (57, 333313), (149, 127509), (447, 42503), (2237, 8493), (2831, 6711)]