21456795

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{953}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 36633600

約数和(自身を除く): 15176805

約数列:

[1, 3, 5, 15, 19, 57, 79, 95, 237, 285, 395, 953, 1185, 1501, 2859, 4503, 4765, 7505, 14295, 18107, 22515, 54321, 75287, 90535, 225861, 271605, 376435, 1129305, 1430453, 4291359, 7152265, 21456795]

約数ペア:

[(1, 21456795), (3, 7152265), (5, 4291359), (15, 1430453), (19, 1129305), (57, 376435), (79, 271605), (95, 225861), (237, 90535), (285, 75287), (395, 54321), (953, 22515), (1185, 18107), (1501, 14295), (2859, 7505), (4503, 4765)]