20791617

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90007}}^1$

素因数の和:90028

約数の個数: 16

約数和(自身を含む): 34563072

約数和(自身を除く): 13771455

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90007, 270021, 630049, 990077, 1890147, 2970231, 6930539, 20791617]

約数ペア:

[(1, 20791617), (3, 6930539), (7, 2970231), (11, 1890147), (21, 990077), (33, 630049), (77, 270021), (231, 90007)]