78431787

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6803}}^1$

素因数の和:6880

約数の個数: 32

約数和(自身を含む): 134991360

約数和(自身を除く): 56559573

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 3843, 6803, 11529, 20409, 47621, 61227, 142863, 183681, 414983, 428589, 1244949, 1285767, 2904881, 3734847, 8714643, 11204541, 26143929, 78431787]

約数ペア:

[(1, 78431787), (3, 26143929), (7, 11204541), (9, 8714643), (21, 3734847), (27, 2904881), (61, 1285767), (63, 1244949), (183, 428589), (189, 414983), (427, 183681), (549, 142863), (1281, 61227), (1647, 47621), (3843, 20409), (6803, 11529)]