25278399

素因数分解:

$3^4\times {\mathrm{521}}^1\times {\mathrm{599}}^1$

素因数の和:1132

約数の個数: 20

約数和(自身を含む): 37897200

約数和(自身を除く): 12618801

約数列:

[1, 3, 9, 27, 81, 521, 599, 1563, 1797, 4689, 5391, 14067, 16173, 42201, 48519, 312079, 936237, 2808711, 8426133, 25278399]

約数ペア:

[(1, 25278399), (3, 8426133), (9, 2808711), (27, 936237), (81, 312079), (521, 48519), (599, 42201), (1563, 16173), (1797, 14067), (4689, 5391)]