19666696

素因数分解:

$2^3\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1061}}^1$

素因数の和:1405

約数の個数: 32

約数和(自身を含む): 42310080

約数和(自身を除く): 22643384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 331, 662, 1061, 1324, 2122, 2317, 2648, 4244, 4634, 7427, 8488, 9268, 14854, 18536, 29708, 59416, 351191, 702382, 1404764, 2458337, 2809528, 4916674, 9833348, 19666696]

約数ペア:

[(1, 19666696), (2, 9833348), (4, 4916674), (7, 2809528), (8, 2458337), (14, 1404764), (28, 702382), (56, 351191), (331, 59416), (662, 29708), (1061, 18536), (1324, 14854), (2122, 9268), (2317, 8488), (2648, 7427), (4244, 4634)]