21030735

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 36951552

約数和(自身を除く): 15920817

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 197, 591, 647, 985, 1941, 2167, 2955, 3235, 6501, 7117, 9705, 10835, 21351, 32505, 35585, 106755, 127459, 382377, 637295, 1402049, 1911885, 4206147, 7010245, 21030735]

約数ペア:

[(1, 21030735), (3, 7010245), (5, 4206147), (11, 1911885), (15, 1402049), (33, 637295), (55, 382377), (165, 127459), (197, 106755), (591, 35585), (647, 32505), (985, 21351), (1941, 10835), (2167, 9705), (2955, 7117), (3235, 6501)]