19667504

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72307}}^1$

素因数の和:72332

約数の個数: 20

約数和(自身を含む): 40347864

約数和(自身を除く): 20680360

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72307, 144614, 289228, 578456, 1156912, 1229219, 2458438, 4916876, 9833752, 19667504]

約数ペア:

[(1, 19667504), (2, 9833752), (4, 4916876), (8, 2458438), (16, 1229219), (17, 1156912), (34, 578456), (68, 289228), (136, 144614), (272, 72307)]