21617412575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{7649}}^1$

素因数の和:7952

約数の個数: 48

約数和(自身を含む): 30051648000

約数和(自身を除く): 8434235425

約数列:

[1, 5, 11, 25, 43, 55, 215, 239, 275, 473, 1075, 1195, 2365, 2629, 5975, 7649, 10277, 11825, 13145, 38245, 51385, 65725, 84139, 113047, 191225, 256925, 328907, 420695, 565235, 1644535, 1828111, 2103475, 2826175, 3617977, 8222675, 9140555, 18089885, 20109221, 45702775, 78608773, 90449425, 100546105, 393043865, 502730525, 864696503, 1965219325, 4323482515, 21617412575]

約数ペア:

[(1, 21617412575), (5, 4323482515), (11, 1965219325), (25, 864696503), (43, 502730525), (55, 393043865), (215, 100546105), (239, 90449425), (275, 78608773), (473, 45702775), (1075, 20109221), (1195, 18089885), (2365, 9140555), (2629, 8222675), (5975, 3617977), (7649, 2826175), (10277, 2103475), (11825, 1828111), (13145, 1644535), (38245, 565235), (51385, 420695), (65725, 328907), (84139, 256925), (113047, 191225)]