18768561

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2767}}^1$

素因数の和:2813

約数の個数: 32

約数和(自身を含む): 31887360

約数和(自身を除く): 13118799

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 2767, 6783, 8301, 19369, 47039, 52573, 58107, 141117, 157719, 329273, 368011, 893741, 987819, 1104033, 2681223, 6256187, 18768561]

約数ペア:

[(1, 18768561), (3, 6256187), (7, 2681223), (17, 1104033), (19, 987819), (21, 893741), (51, 368011), (57, 329273), (119, 157719), (133, 141117), (323, 58107), (357, 52573), (399, 47039), (969, 19369), (2261, 8301), (2767, 6783)]