20121876836

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{70851679}}^1$

素因数の和:70851754

約数の個数: 12

約数和(自身を含む): 35709246720

約数和(自身を除く): 15587369884

約数列:

[1, 2, 4, 71, 142, 284, 70851679, 141703358, 283406716, 5030469209, 10060938418, 20121876836]

約数ペア:

[(1, 20121876836), (2, 10060938418), (4, 5030469209), (71, 283406716), (142, 141703358), (284, 70851679)]