13778401

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{613}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 17977920

約数和(自身を除く): 4199519

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 613, 1183, 1729, 3211, 4291, 7969, 11647, 22477, 55783, 81529, 103597, 151411, 725179, 1059877, 1968343, 13778401]

約数ペア:

[(1, 13778401), (7, 1968343), (13, 1059877), (19, 725179), (91, 151411), (133, 103597), (169, 81529), (247, 55783), (613, 22477), (1183, 11647), (1729, 7969), (3211, 4291)]