19307547

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2237}}^1$

素因数の和:2387

約数の個数: 24

約数和(自身を含む): 32119776

約数和(自身を除く): 12812229

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2237, 2877, 6711, 8631, 15659, 20133, 46977, 140931, 306469, 919407, 2145283, 2758221, 6435849, 19307547]

約数ペア:

[(1, 19307547), (3, 6435849), (7, 2758221), (9, 2145283), (21, 919407), (63, 306469), (137, 140931), (411, 46977), (959, 20133), (1233, 15659), (2237, 8631), (2877, 6711)]