2021691225

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{2971}}^1$

素因数の和:3238

約数の個数: 48

約数和(自身を含む): 3437629184

約数和(自身を除く): 1415937959

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 211, 215, 633, 645, 1055, 1075, 2971, 3165, 3225, 5275, 8913, 9073, 14855, 15825, 27219, 44565, 45365, 74275, 127753, 136095, 222825, 226825, 383259, 626881, 638765, 680475, 1880643, 1916295, 3134405, 3193825, 9403215, 9581475, 15672025, 26955883, 47016075, 80867649, 134779415, 404338245, 673897075, 2021691225]

約数ペア:

[(1, 2021691225), (3, 673897075), (5, 404338245), (15, 134779415), (25, 80867649), (43, 47016075), (75, 26955883), (129, 15672025), (211, 9581475), (215, 9403215), (633, 3193825), (645, 3134405), (1055, 1916295), (1075, 1880643), (2971, 680475), (3165, 638765), (3225, 626881), (5275, 383259), (8913, 226825), (9073, 222825), (14855, 136095), (15825, 127753), (27219, 74275), (44565, 45365)]