19787541

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{787}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 29029920

約数和(自身を除く): 9242379

約数列:

[1, 3, 17, 29, 51, 87, 289, 493, 787, 867, 1479, 2361, 8381, 13379, 22823, 25143, 40137, 68469, 227443, 387991, 682329, 1163973, 6595847, 19787541]

約数ペア:

[(1, 19787541), (3, 6595847), (17, 1163973), (29, 682329), (51, 387991), (87, 227443), (289, 68469), (493, 40137), (787, 25143), (867, 22823), (1479, 13379), (2361, 8381)]