138889779

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{389047}}^1$

素因数の和:389074

約数の個数: 16

約数和(自身を含む): 224091648

約数和(自身を除く): 85201869

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 389047, 1167141, 2723329, 6613799, 8169987, 19841397, 46296593, 138889779]

約数ペア:

[(1, 138889779), (3, 46296593), (7, 19841397), (17, 8169987), (21, 6613799), (51, 2723329), (119, 1167141), (357, 389047)]