19663231

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 23240448

約数和(自身を除く): 3577217

約数列:

[1, 7, 41, 131, 287, 523, 917, 3661, 5371, 21443, 37597, 68513, 150101, 479591, 2809033, 19663231]

約数ペア:

[(1, 19663231), (7, 2809033), (41, 479591), (131, 150101), (287, 68513), (523, 37597), (917, 21443), (3661, 5371)]