81017321

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1889}}^1$

素因数の和:2464

約数の個数: 16

約数和(自身を含む): 101243520

約数和(自身を除く): 20226199

約数列:

[1, 7, 11, 77, 557, 1889, 3899, 6127, 13223, 20779, 42889, 145453, 1052173, 7365211, 11573903, 81017321]

約数ペア:

[(1, 81017321), (7, 11573903), (11, 7365211), (77, 1052173), (557, 145453), (1889, 42889), (3899, 20779), (6127, 13223)]