2171939

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:506

約数の個数: 16

約数和(自身を含む): 2754816

約数和(自身を除く): 582877

約数列:

[1, 7, 11, 67, 77, 421, 469, 737, 2947, 4631, 5159, 28207, 32417, 197449, 310277, 2171939]

約数ペア:

[(1, 2171939), (7, 310277), (11, 197449), (67, 32417), (77, 28207), (421, 5159), (469, 4631), (737, 2947)]