12780719

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 16046640

約数和(自身を除く): 3265921

約数列:

[1, 7, 17, 49, 67, 119, 229, 469, 833, 1139, 1603, 3283, 3893, 7973, 11221, 15343, 27251, 55811, 107401, 190757, 260831, 751807, 1825817, 12780719]

約数ペア:

[(1, 12780719), (7, 1825817), (17, 751807), (49, 260831), (67, 190757), (119, 107401), (229, 55811), (469, 27251), (833, 15343), (1139, 11221), (1603, 7973), (3283, 3893)]