21074445

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 23277555

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 769, 783, 945, 1015, 1305, 1827, 2307, 3045, 3845, 3915, 5383, 5481, 6921, 9135, 11535, 16149, 20763, 22301, 26915, 27405, 34605, 48447, 66903, 80745, 103815, 111505, 145341, 156107, 200709, 242235, 334515, 468321, 602127, 726705, 780535, 1003545, 1404963, 2341605, 3010635, 4214889, 7024815, 21074445]

約数ペア:

[(1, 21074445), (3, 7024815), (5, 4214889), (7, 3010635), (9, 2341605), (15, 1404963), (21, 1003545), (27, 780535), (29, 726705), (35, 602127), (45, 468321), (63, 334515), (87, 242235), (105, 200709), (135, 156107), (145, 145341), (189, 111505), (203, 103815), (261, 80745), (315, 66903), (435, 48447), (609, 34605), (769, 27405), (783, 26915), (945, 22301), (1015, 20763), (1305, 16149), (1827, 11535), (2307, 9135), (3045, 6921), (3845, 5481), (3915, 5383)]