21000844795

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{47459}}^1$

素因数の和:47787

約数の個数: 32

約数和(自身を含む): 29523916800

約数和(自身を除く): 8523072005

約数列:

[1, 5, 7, 35, 47, 235, 269, 329, 1345, 1645, 1883, 9415, 12643, 47459, 63215, 88501, 237295, 332213, 442505, 1661065, 2230573, 11152865, 12766471, 15614011, 63832355, 78070055, 89365297, 446826485, 600024137, 3000120685, 4200168959, 21000844795]

約数ペア:

[(1, 21000844795), (5, 4200168959), (7, 3000120685), (35, 600024137), (47, 446826485), (235, 89365297), (269, 78070055), (329, 63832355), (1345, 15614011), (1645, 12766471), (1883, 11152865), (9415, 2230573), (12643, 1661065), (47459, 442505), (63215, 332213), (88501, 237295)]