856151289

素因数分解:

$3^4\times 7^1\times {\mathrm{1509967}}^1$

素因数の和:1509986

約数の個数: 20

約数和(自身を含む): 1461649024

約数和(自身を除く): 605497735

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1509967, 4529901, 10569769, 13589703, 31709307, 40769109, 95127921, 122307327, 285383763, 856151289]

約数ペア:

[(1, 856151289), (3, 285383763), (7, 122307327), (9, 95127921), (21, 40769109), (27, 31709307), (63, 13589703), (81, 10569769), (189, 4529901), (567, 1509967)]