78878007

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1609}}^1$

素因数の和:2047

約数の個数: 24

約数和(自身を含む): 123068400

約数和(自身を除く): 44190393

約数列:

[1, 3, 9, 13, 39, 117, 419, 1257, 1609, 3771, 4827, 5447, 14481, 16341, 20917, 49023, 62751, 188253, 674171, 2022513, 6067539, 8764223, 26292669, 78878007]

約数ペア:

[(1, 78878007), (3, 26292669), (9, 8764223), (13, 6067539), (39, 2022513), (117, 674171), (419, 188253), (1257, 62751), (1609, 49023), (3771, 20917), (4827, 16341), (5447, 14481)]