207728521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{207521}}^1$

素因数の和:207552

約数の個数: 16

約数和(自身を含む): 278909568

約数和(自身を除く): 71181047

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 207521, 1452647, 2282731, 2697773, 15979117, 18884411, 29675503, 207728521]

約数ペア:

[(1, 207728521), (7, 29675503), (11, 18884411), (13, 15979117), (77, 2697773), (91, 2282731), (143, 1452647), (1001, 207521)]