221520652065

素因数分解:

$3^4\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{520423}}^1$

素因数の和:521491

約数の個数: 40

約数和(自身を含む): 397474870848

約数和(自身を除く): 175954218783

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1051, 3153, 5255, 9459, 15765, 28377, 47295, 85131, 141885, 425655, 520423, 1561269, 2602115, 4683807, 7806345, 14051421, 23419035, 42154263, 70257105, 210771315, 546964573, 1640893719, 2734822865, 4922681157, 8204468595, 14768043471, 24613405785, 44304130413, 73840217355, 221520652065]

約数ペア:

[(1, 221520652065), (3, 73840217355), (5, 44304130413), (9, 24613405785), (15, 14768043471), (27, 8204468595), (45, 4922681157), (81, 2734822865), (135, 1640893719), (405, 546964573), (1051, 210771315), (3153, 70257105), (5255, 42154263), (9459, 23419035), (15765, 14051421), (28377, 7806345), (47295, 4683807), (85131, 2602115), (141885, 1561269), (425655, 520423)]