71987139

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 122653440

約数和(自身を除く): 50666301

約数列:

[1, 3, 7, 9, 21, 59, 63, 107, 177, 181, 321, 413, 531, 543, 749, 963, 1239, 1267, 1629, 2247, 3717, 3801, 6313, 6741, 10679, 11403, 18939, 19367, 32037, 44191, 56817, 58101, 74753, 96111, 132573, 135569, 174303, 224259, 397719, 406707, 672777, 1142653, 1220121, 3427959, 7998571, 10283877, 23995713, 71987139]

約数ペア:

[(1, 71987139), (3, 23995713), (7, 10283877), (9, 7998571), (21, 3427959), (59, 1220121), (63, 1142653), (107, 672777), (177, 406707), (181, 397719), (321, 224259), (413, 174303), (531, 135569), (543, 132573), (749, 96111), (963, 74753), (1239, 58101), (1267, 56817), (1629, 44191), (2247, 32037), (3717, 19367), (3801, 18939), (6313, 11403), (6741, 10679)]