1900790619

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{161921}}^1$

素因数の和:161987

約数の個数: 32

約数和(自身を含む): 3191806464

約数和(自身を除く): 1291015845

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 11739, 161921, 485763, 1133447, 2104973, 3400341, 6314919, 6962603, 14734811, 20887809, 44204433, 48738221, 90513839, 146214663, 271541517, 633596873, 1900790619]

約数ペア:

[(1, 1900790619), (3, 633596873), (7, 271541517), (13, 146214663), (21, 90513839), (39, 48738221), (43, 44204433), (91, 20887809), (129, 14734811), (273, 6962603), (301, 6314919), (559, 3400341), (903, 2104973), (1677, 1133447), (3913, 485763), (11739, 161921)]