18966528027

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{677}}^1\times {\mathrm{2203}}^1$

素因数の和:3049

約数の個数: 40

約数和(自身を含む): 28568256816

約数和(自身を除く): 9601728789

約数列:

[1, 3, 9, 27, 81, 157, 471, 677, 1413, 2031, 2203, 4239, 6093, 6609, 12717, 18279, 19827, 54837, 59481, 106289, 178443, 318867, 345871, 956601, 1037613, 1491431, 2869803, 3112839, 4474293, 8609409, 9338517, 13422879, 28015551, 40268637, 120805911, 234154667, 702464001, 2107392003, 6322176009, 18966528027]

約数ペア:

[(1, 18966528027), (3, 6322176009), (9, 2107392003), (27, 702464001), (81, 234154667), (157, 120805911), (471, 40268637), (677, 28015551), (1413, 13422879), (2031, 9338517), (2203, 8609409), (4239, 4474293), (6093, 3112839), (6609, 2869803), (12717, 1491431), (18279, 1037613), (19827, 956601), (54837, 345871), (59481, 318867), (106289, 178443)]