1720359

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:396

約数の個数: 20

約数和(自身を含む): 2616504

約数和(自身を除く): 896145

約数列:

[1, 3, 9, 27, 67, 81, 201, 317, 603, 951, 1809, 2853, 5427, 8559, 21239, 25677, 63717, 191151, 573453, 1720359]

約数ペア:

[(1, 1720359), (3, 573453), (9, 191151), (27, 63717), (67, 25677), (81, 21239), (201, 8559), (317, 5427), (603, 2853), (951, 1809)]