138209281

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{2111}}^1$

素因数の和:2364

約数の個数: 16

約数和(自身を含む): 162201600

約数和(自身を除く): 23992319

約数列:

[1, 7, 47, 199, 329, 1393, 2111, 9353, 14777, 65471, 99217, 420089, 694519, 2940623, 19744183, 138209281]

約数ペア:

[(1, 138209281), (7, 19744183), (47, 2940623), (199, 694519), (329, 420089), (1393, 99217), (2111, 65471), (9353, 14777)]