1239987

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 1907712

約数和(自身を除く): 667725

約数列:

[1, 3, 7, 21, 137, 411, 431, 959, 1293, 2877, 3017, 9051, 59047, 177141, 413329, 1239987]

約数ペア:

[(1, 1239987), (3, 413329), (7, 177141), (21, 59047), (137, 9051), (411, 3017), (431, 2877), (959, 1293)]