19211521

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 22538880

約数和(自身を除く): 3327359

約数列:

[1, 7, 59, 181, 257, 413, 1267, 1799, 10679, 15163, 46517, 74753, 106141, 325619, 2744503, 19211521]

約数ペア:

[(1, 19211521), (7, 2744503), (59, 325619), (181, 106141), (257, 74753), (413, 46517), (1267, 15163), (1799, 10679)]