20005755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17321}}^1$

素因数の和:17347

約数の個数: 32

約数和(自身を含む): 39909888

約数和(自身を除く): 19904133

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17321, 51963, 86605, 121247, 190531, 259815, 363741, 571593, 606235, 952655, 1333717, 1818705, 2857965, 4001151, 6668585, 20005755]

約数ペア:

[(1, 20005755), (3, 6668585), (5, 4001151), (7, 2857965), (11, 1818705), (15, 1333717), (21, 952655), (33, 606235), (35, 571593), (55, 363741), (77, 259815), (105, 190531), (165, 121247), (231, 86605), (385, 51963), (1155, 17321)]