20289711

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12689}}^1$

素因数の和:12746

約数の個数: 16

約数和(自身を含む): 29846880

約数和(自身を除く): 9557169

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 12689, 38067, 164957, 494871, 520249, 1560747, 6763237, 20289711]

約数ペア:

[(1, 20289711), (3, 6763237), (13, 1560747), (39, 520249), (41, 494871), (123, 164957), (533, 38067), (1599, 12689)]