18940226

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{709}}^1$

素因数の和:786

約数の個数: 24

約数和(自身を含む): 30838140

約数和(自身を除く): 11897914

約数列:

[1, 2, 19, 37, 38, 74, 361, 703, 709, 722, 1406, 1418, 13357, 13471, 26233, 26714, 26942, 52466, 255949, 498427, 511898, 996854, 9470113, 18940226]

約数ペア:

[(1, 18940226), (2, 9470113), (19, 996854), (37, 511898), (38, 498427), (74, 255949), (361, 52466), (703, 26942), (709, 26714), (722, 26233), (1406, 13471), (1418, 13357)]