1211679

素因数分解:

$3^4\times 7^1\times {\mathrm{2137}}^1$

素因数の和:2156

約数の個数: 20

約数和(自身を含む): 2069584

約数和(自身を除く): 857905

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2137, 6411, 14959, 19233, 44877, 57699, 134631, 173097, 403893, 1211679]

約数ペア:

[(1, 1211679), (3, 403893), (7, 173097), (9, 134631), (21, 57699), (27, 44877), (63, 19233), (81, 14959), (189, 6411), (567, 2137)]