20659419

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:400

約数の個数: 36

約数和(自身を含む): 33445776

約数和(自身を除く): 12786357

約数列:

[1, 3, 9, 11, 33, 61, 99, 121, 183, 311, 363, 549, 671, 933, 1089, 2013, 2799, 3421, 6039, 7381, 10263, 18971, 22143, 30789, 37631, 56913, 66429, 112893, 170739, 208681, 338679, 626043, 1878129, 2295491, 6886473, 20659419]

約数ペア:

[(1, 20659419), (3, 6886473), (9, 2295491), (11, 1878129), (33, 626043), (61, 338679), (99, 208681), (121, 170739), (183, 112893), (311, 66429), (363, 56913), (549, 37631), (671, 30789), (933, 22143), (1089, 18971), (2013, 10263), (2799, 7381), (3421, 6039)]