21315371615

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1\times {\mathrm{5471}}^1$

素因数の和:5863

約数の個数: 32

約数和(自身を含む): 26664837120

約数和(自身を除く): 5349465505

約数列:

[1, 5, 47, 59, 235, 281, 295, 1405, 2773, 5471, 13207, 13865, 16579, 27355, 66035, 82895, 257137, 322789, 779213, 1285685, 1537351, 1613945, 3896065, 7686755, 15171083, 72255497, 75855415, 90703709, 361277485, 453518545, 4263074323, 21315371615]

約数ペア:

[(1, 21315371615), (5, 4263074323), (47, 453518545), (59, 361277485), (235, 90703709), (281, 75855415), (295, 72255497), (1405, 15171083), (2773, 7686755), (5471, 3896065), (13207, 1613945), (13865, 1537351), (16579, 1285685), (27355, 779213), (66035, 322789), (82895, 257137)]