20165397

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20431}}^1$

素因数の和:20488

約数の個数: 16

約数和(自身を含む): 31383552

約数和(自身を除く): 11218155

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20431, 61293, 143017, 429051, 960257, 2880771, 6721799, 20165397]

約数ペア:

[(1, 20165397), (3, 6721799), (7, 2880771), (21, 960257), (47, 429051), (141, 143017), (329, 61293), (987, 20431)]