19938961

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{761}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 24140160

約数和(自身を除く): 4201199

約数列:

[1, 7, 19, 133, 197, 761, 1379, 3743, 5327, 14459, 26201, 101213, 149917, 1049419, 2848423, 19938961]

約数ペア:

[(1, 19938961), (7, 2848423), (19, 1049419), (133, 149917), (197, 101213), (761, 26201), (1379, 14459), (3743, 5327)]