19966051

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{607}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 23658496

約数和(自身を除く): 3692445

約数列:

[1, 7, 37, 127, 259, 607, 889, 4249, 4699, 22459, 32893, 77089, 157213, 539623, 2852293, 19966051]

約数ペア:

[(1, 19966051), (7, 2852293), (37, 539623), (127, 157213), (259, 77089), (607, 32893), (889, 22459), (4249, 4699)]