1640721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 2363904

約数和(自身を除く): 723183

約数列:

[1, 3, 17, 51, 53, 159, 607, 901, 1821, 2703, 10319, 30957, 32171, 96513, 546907, 1640721]

約数ペア:

[(1, 1640721), (3, 546907), (17, 96513), (51, 32171), (53, 30957), (159, 10319), (607, 2703), (901, 1821)]