20409909

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1249}}^1$

素因数の和:1684

約数の個数: 16

約数和(自身を含む): 29400000

約数和(自身を除く): 8990091

約数列:

[1, 3, 13, 39, 419, 1249, 1257, 3747, 5447, 16237, 16341, 48711, 523331, 1569993, 6803303, 20409909]

約数ペア:

[(1, 20409909), (3, 6803303), (13, 1569993), (39, 523331), (419, 48711), (1249, 16341), (1257, 16237), (3747, 5447)]