20561695

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53407}}^1$

素因数の和:53430

約数の個数: 16

約数和(自身を含む): 30763008

約数和(自身を除く): 10201313

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53407, 267035, 373849, 587477, 1869245, 2937385, 4112339, 20561695]

約数ペア:

[(1, 20561695), (5, 4112339), (7, 2937385), (11, 1869245), (35, 587477), (55, 373849), (77, 267035), (385, 53407)]