18542223

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 34560000

約数和(自身を除く): 16017777

約数列:

[1, 3, 7, 9, 17, 21, 27, 29, 51, 63, 87, 119, 153, 189, 199, 203, 261, 357, 459, 493, 597, 609, 783, 1071, 1393, 1479, 1791, 1827, 3213, 3383, 3451, 4179, 4437, 5373, 5481, 5771, 10149, 10353, 12537, 13311, 17313, 23681, 30447, 31059, 37611, 40397, 51939, 71043, 91341, 93177, 98107, 121191, 155817, 213129, 294321, 363573, 639387, 686749, 882963, 1090719, 2060247, 2648889, 6180741, 18542223]

約数ペア:

[(1, 18542223), (3, 6180741), (7, 2648889), (9, 2060247), (17, 1090719), (21, 882963), (27, 686749), (29, 639387), (51, 363573), (63, 294321), (87, 213129), (119, 155817), (153, 121191), (189, 98107), (199, 93177), (203, 91341), (261, 71043), (357, 51939), (459, 40397), (493, 37611), (597, 31059), (609, 30447), (783, 23681), (1071, 17313), (1393, 13311), (1479, 12537), (1791, 10353), (1827, 10149), (3213, 5771), (3383, 5481), (3451, 5373), (4179, 4437)]