20145871291

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{215563}}^1$

素因数の和:215675

約数の個数: 24

約数和(自身を含む): 25246855680

約数和(自身を除く): 5100984389

約数列:

[1, 7, 13, 79, 91, 169, 553, 1027, 1183, 7189, 13351, 93457, 215563, 1508941, 2802319, 17029477, 19616233, 36430147, 119206339, 221383201, 255011029, 1549682407, 2877981613, 20145871291]

約数ペア:

[(1, 20145871291), (7, 2877981613), (13, 1549682407), (79, 255011029), (91, 221383201), (169, 119206339), (553, 36430147), (1027, 19616233), (1183, 17029477), (7189, 2802319), (13351, 1508941), (93457, 215563)]