20712573

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2017}}^1$

素因数の和:2193

約数の個数: 24

約数和(自身を含む): 34419008

約数和(自身を除く): 13706435

約数列:

[1, 3, 7, 9, 21, 63, 163, 489, 1141, 1467, 2017, 3423, 6051, 10269, 14119, 18153, 42357, 127071, 328771, 986313, 2301397, 2958939, 6904191, 20712573]

約数ペア:

[(1, 20712573), (3, 6904191), (7, 2958939), (9, 2301397), (21, 986313), (63, 328771), (163, 127071), (489, 42357), (1141, 18153), (1467, 14119), (2017, 10269), (3423, 6051)]