18718401

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{25261}}^1$

素因数の和:25296

約数の個数: 16

約数和(自身を含む): 28293440

約数和(自身を除く): 9575039

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 25261, 75783, 328393, 479959, 985179, 1439877, 6239467, 18718401]

約数ペア:

[(1, 18718401), (3, 6239467), (13, 1439877), (19, 985179), (39, 479959), (57, 328393), (247, 75783), (741, 25261)]