19660994

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{359}}^1$

素因数の和:697

約数の個数: 16

約数和(自身を含む): 29937600

約数和(自身を除く): 10276606

約数列:

[1, 2, 139, 197, 278, 359, 394, 718, 27383, 49901, 54766, 70723, 99802, 141446, 9830497, 19660994]

約数ペア:

[(1, 19660994), (2, 9830497), (139, 141446), (197, 99802), (278, 70723), (359, 54766), (394, 49901), (718, 27383)]