20201013

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7457}}^1$

素因数の和:7513

約数の個数: 24

約数和(自身を含む): 34127808

約数和(自身を除く): 13926795

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7457, 22371, 52199, 67113, 156597, 320651, 469791, 961953, 2244557, 2885859, 6733671, 20201013]

約数ペア:

[(1, 20201013), (3, 6733671), (7, 2885859), (9, 2244557), (21, 961953), (43, 469791), (63, 320651), (129, 156597), (301, 67113), (387, 52199), (903, 22371), (2709, 7457)]