20947661

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{2609}}^1$

素因数の和:2684

約数の個数: 16

約数和(自身を含む): 25390080

約数和(自身を除く): 4442419

約数列:

[1, 7, 31, 37, 217, 259, 1147, 2609, 8029, 18263, 80879, 96533, 566153, 675731, 2992523, 20947661]

約数ペア:

[(1, 20947661), (7, 2992523), (31, 675731), (37, 566153), (217, 96533), (259, 80879), (1147, 18263), (2609, 8029)]