21705310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5333}}^1$

素因数の和:5388

約数の個数: 32

約数和(自身を含む): 43781472

約数和(自身を除く): 22076162

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 5333, 10666, 26665, 53330, 58663, 117326, 197321, 293315, 394642, 586630, 986605, 1973210, 2170531, 4341062, 10852655, 21705310]

約数ペア:

[(1, 21705310), (2, 10852655), (5, 4341062), (10, 2170531), (11, 1973210), (22, 986605), (37, 586630), (55, 394642), (74, 293315), (110, 197321), (185, 117326), (370, 58663), (407, 53330), (814, 26665), (2035, 10666), (4070, 5333)]