21161203

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:586

約数の個数: 16

約数和(自身を含む): 24935680

約数和(自身を除く): 3774477

約数列:

[1, 7, 43, 229, 301, 307, 1603, 2149, 9847, 13201, 68929, 70303, 92407, 492121, 3023029, 21161203]

約数ペア:

[(1, 21161203), (7, 3023029), (43, 492121), (229, 92407), (301, 70303), (307, 68929), (1603, 13201), (2149, 9847)]