1891107

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:680

約数の個数: 20

約数和(自身を含む): 2905936

約数和(自身を除く): 1014829

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 631, 999, 1893, 2997, 5679, 17037, 23347, 51111, 70041, 210123, 630369, 1891107]

約数ペア:

[(1, 1891107), (3, 630369), (9, 210123), (27, 70041), (37, 51111), (81, 23347), (111, 17037), (333, 5679), (631, 2997), (999, 1893)]