18933428

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 33888960

約数和(自身を除く): 14955532

約数列:

[1, 2, 4, 71, 142, 163, 284, 326, 409, 652, 818, 1636, 11573, 23146, 29039, 46292, 58078, 66667, 116156, 133334, 266668, 4733357, 9466714, 18933428]

約数ペア:

[(1, 18933428), (2, 9466714), (4, 4733357), (71, 266668), (142, 133334), (163, 116156), (284, 66667), (326, 58078), (409, 46292), (652, 29039), (818, 23146), (1636, 11573)]