7828191

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 13853280

約数和(自身を除く): 6025089

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 97, 147, 183, 189, 291, 427, 441, 549, 679, 873, 1281, 1323, 1647, 2037, 2619, 2989, 3843, 4753, 5917, 6111, 8967, 11529, 14259, 17751, 18333, 26901, 41419, 42777, 53253, 80703, 124257, 128331, 159759, 289933, 372771, 869799, 1118313, 2609397, 7828191]

約数ペア:

[(1, 7828191), (3, 2609397), (7, 1118313), (9, 869799), (21, 372771), (27, 289933), (49, 159759), (61, 128331), (63, 124257), (97, 80703), (147, 53253), (183, 42777), (189, 41419), (291, 26901), (427, 18333), (441, 17751), (549, 14259), (679, 11529), (873, 8967), (1281, 6111), (1323, 5917), (1647, 4753), (2037, 3843), (2619, 2989)]