21508733255

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:768

約数の個数: 64

約数和(自身を含む): 28076875776

約数和(自身を除く): 6568142521

約数列:

[1, 5, 31, 37, 71, 101, 155, 185, 355, 505, 523, 1147, 2201, 2615, 2627, 3131, 3737, 5735, 7171, 11005, 13135, 15655, 16213, 18685, 19351, 35855, 37133, 52823, 81065, 81437, 96755, 115847, 185665, 222301, 264115, 265327, 407185, 579235, 599881, 1111505, 1151123, 1326635, 1373921, 1637513, 1954451, 2999405, 3750433, 5755615, 6869605, 8187565, 8225137, 9772255, 18752165, 41125685, 42591551, 60587981, 116263423, 138766021, 212957755, 302939905, 581317115, 693830105, 4301746651, 21508733255]

約数ペア:

[(1, 21508733255), (5, 4301746651), (31, 693830105), (37, 581317115), (71, 302939905), (101, 212957755), (155, 138766021), (185, 116263423), (355, 60587981), (505, 42591551), (523, 41125685), (1147, 18752165), (2201, 9772255), (2615, 8225137), (2627, 8187565), (3131, 6869605), (3737, 5755615), (5735, 3750433), (7171, 2999405), (11005, 1954451), (13135, 1637513), (15655, 1373921), (16213, 1326635), (18685, 1151123), (19351, 1111505), (35855, 599881), (37133, 579235), (52823, 407185), (81065, 265327), (81437, 264115), (96755, 222301), (115847, 185665)]