20121016972

素因数分解:

$2^2\times 7^1\times {\mathrm{718607749}}^1$

素因数の和:718607760

約数の個数: 12

約数和(自身を含む): 40242034000

約数和(自身を除く): 20121017028

約数列:

[1, 2, 4, 7, 14, 28, 718607749, 1437215498, 2874430996, 5030254243, 10060508486, 20121016972]

約数ペア:

[(1, 20121016972), (2, 10060508486), (4, 5030254243), (7, 2874430996), (14, 1437215498), (28, 718607749)]