51211818

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2300

約数の個数: 64

約数和(自身を含む): 132253440

約数和(自身を除く): 81041622

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 61, 63, 122, 126, 183, 189, 366, 378, 427, 549, 854, 1098, 1281, 1647, 2221, 2562, 3294, 3843, 4442, 6663, 7686, 11529, 13326, 15547, 19989, 23058, 31094, 39978, 46641, 59967, 93282, 119934, 135481, 139923, 270962, 279846, 406443, 419769, 812886, 839538, 948367, 1219329, 1896734, 2438658, 2845101, 3657987, 5690202, 7315974, 8535303, 17070606, 25605909, 51211818]

約数ペア:

[(1, 51211818), (2, 25605909), (3, 17070606), (6, 8535303), (7, 7315974), (9, 5690202), (14, 3657987), (18, 2845101), (21, 2438658), (27, 1896734), (42, 1219329), (54, 948367), (61, 839538), (63, 812886), (122, 419769), (126, 406443), (183, 279846), (189, 270962), (366, 139923), (378, 135481), (427, 119934), (549, 93282), (854, 59967), (1098, 46641), (1281, 39978), (1647, 31094), (2221, 23058), (2562, 19989), (3294, 15547), (3843, 13326), (4442, 11529), (6663, 7686)]