21037035

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 35173440

約数和(自身を除く): 14136405

約数列:

[1, 3, 5, 15, 29, 87, 137, 145, 353, 411, 435, 685, 1059, 1765, 2055, 3973, 5295, 10237, 11919, 19865, 30711, 48361, 51185, 59595, 145083, 153555, 241805, 725415, 1402469, 4207407, 7012345, 21037035]

約数ペア:

[(1, 21037035), (3, 7012345), (5, 4207407), (15, 1402469), (29, 725415), (87, 241805), (137, 153555), (145, 145083), (353, 59595), (411, 51185), (435, 48361), (685, 30711), (1059, 19865), (1765, 11919), (2055, 10237), (3973, 5295)]