15425721

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1213}}^1$

素因数の和:1382

約数の個数: 20

約数和(自身を含む): 23209252

約数和(自身を除く): 7783531

約数列:

[1, 3, 9, 27, 81, 157, 471, 1213, 1413, 3639, 4239, 10917, 12717, 32751, 98253, 190441, 571323, 1713969, 5141907, 15425721]

約数ペア:

[(1, 15425721), (3, 5141907), (9, 1713969), (27, 571323), (81, 190441), (157, 98253), (471, 32751), (1213, 12717), (1413, 10917), (3639, 4239)]