1666089

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:386

約数の個数: 20

約数和(自身を含む): 2534224

約数和(自身を除く): 868135

約数列:

[1, 3, 9, 27, 67, 81, 201, 307, 603, 921, 1809, 2763, 5427, 8289, 20569, 24867, 61707, 185121, 555363, 1666089]

約数ペア:

[(1, 1666089), (3, 555363), (9, 185121), (27, 61707), (67, 24867), (81, 20569), (201, 8289), (307, 5427), (603, 2763), (921, 1809)]