20871347

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 24587712

約数和(自身を除く): 3716365

約数列:

[1, 7, 53, 101, 371, 557, 707, 3899, 5353, 29521, 37471, 56257, 206647, 393799, 2981621, 20871347]

約数ペア:

[(1, 20871347), (7, 2981621), (53, 393799), (101, 206647), (371, 56257), (557, 37471), (707, 29521), (3899, 5353)]