1778193

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:798

約数の個数: 20

約数和(自身を含む): 2751540

約数和(自身を除く): 973347

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 757, 783, 2271, 2349, 6813, 20439, 21953, 61317, 65859, 197577, 592731, 1778193]

約数ペア:

[(1, 1778193), (3, 592731), (9, 197577), (27, 65859), (29, 61317), (81, 21953), (87, 20439), (261, 6813), (757, 2349), (783, 2271)]