21183183

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 15508017

約数列:

[1, 3, 7, 9, 21, 41, 59, 63, 123, 139, 177, 287, 369, 413, 417, 531, 861, 973, 1239, 1251, 2419, 2583, 2919, 3717, 5699, 7257, 8201, 8757, 16933, 17097, 21771, 24603, 39893, 50799, 51291, 57407, 73809, 119679, 152397, 172221, 336241, 359037, 516663, 1008723, 2353687, 3026169, 7061061, 21183183]

約数ペア:

[(1, 21183183), (3, 7061061), (7, 3026169), (9, 2353687), (21, 1008723), (41, 516663), (59, 359037), (63, 336241), (123, 172221), (139, 152397), (177, 119679), (287, 73809), (369, 57407), (413, 51291), (417, 50799), (531, 39893), (861, 24603), (973, 21771), (1239, 17097), (1251, 16933), (2419, 8757), (2583, 8201), (2919, 7257), (3717, 5699)]