19807249

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4217}}^1$

素因数の和:4296

約数の個数: 16

約数和(自身を含む): 25105536

約数和(自身を除く): 5298287

約数列:

[1, 7, 11, 61, 77, 427, 671, 4217, 4697, 29519, 46387, 257237, 324709, 1800659, 2829607, 19807249]

約数ペア:

[(1, 19807249), (7, 2829607), (11, 1800659), (61, 324709), (77, 257237), (427, 46387), (671, 29519), (4217, 4697)]