21224595

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 40186368

約数和(自身を除く): 18961773

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 67, 105, 147, 201, 245, 335, 431, 469, 735, 1005, 1293, 1407, 2155, 2345, 3017, 3283, 6465, 7035, 9051, 9849, 15085, 16415, 21119, 28877, 45255, 49245, 63357, 86631, 105595, 144385, 202139, 316785, 433155, 606417, 1010695, 1414973, 3032085, 4244919, 7074865, 21224595]

約数ペア:

[(1, 21224595), (3, 7074865), (5, 4244919), (7, 3032085), (15, 1414973), (21, 1010695), (35, 606417), (49, 433155), (67, 316785), (105, 202139), (147, 144385), (201, 105595), (245, 86631), (335, 63357), (431, 49245), (469, 45255), (735, 28877), (1005, 21119), (1293, 16415), (1407, 15085), (2155, 9849), (2345, 9051), (3017, 7035), (3283, 6465)]