16908993

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{10987}}^1$

素因数の和:11018

約数の個数: 20

約数和(自身を含む): 26590960

約数和(自身を除く): 9681967

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 10987, 32961, 98883, 208753, 296649, 626259, 889947, 1878777, 5636331, 16908993]

約数ペア:

[(1, 16908993), (3, 5636331), (9, 1878777), (19, 889947), (27, 626259), (57, 296649), (81, 208753), (171, 98883), (513, 32961), (1539, 10987)]