68746815

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21517}}^1$

素因数の和:21599

約数の個数: 24

約数和(自身を含む): 120845088

約数和(自身を除く): 52098273

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 21517, 64551, 107585, 193653, 322755, 968265, 1527707, 4583121, 7638535, 13749363, 22915605, 68746815]

約数ペア:

[(1, 68746815), (3, 22915605), (5, 13749363), (9, 7638535), (15, 4583121), (45, 1527707), (71, 968265), (213, 322755), (355, 193653), (639, 107585), (1065, 64551), (3195, 21517)]