19961511

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{2113}}^1$

素因数の和:2230

約数の個数: 16

約数和(自身を含む): 27600384

約数和(自身を除く): 7638873

約数列:

[1, 3, 47, 67, 141, 201, 2113, 3149, 6339, 9447, 99311, 141571, 297933, 424713, 6653837, 19961511]

約数ペア:

[(1, 19961511), (3, 6653837), (47, 424713), (67, 297933), (141, 141571), (201, 99311), (2113, 9447), (3149, 6339)]