18828693

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17881}}^1$

素因数の和:17906

約数の個数: 20

約数和(自身を含む): 30292108

約数和(自身を除く): 11463415

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17881, 53643, 160929, 232453, 482787, 697359, 1448361, 2092077, 6276231, 18828693]

約数ペア:

[(1, 18828693), (3, 6276231), (9, 2092077), (13, 1448361), (27, 697359), (39, 482787), (81, 232453), (117, 160929), (351, 53643), (1053, 17881)]