19966401

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24379}}^1$

素因数の和:24405

約数の個数: 24

約数和(自身を含む): 35497280

約数和(自身を除く): 15530879

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24379, 73137, 170653, 219411, 316927, 511959, 950781, 1535877, 2218489, 2852343, 6655467, 19966401]

約数ペア:

[(1, 19966401), (3, 6655467), (7, 2852343), (9, 2218489), (13, 1535877), (21, 950781), (39, 511959), (63, 316927), (91, 219411), (117, 170653), (273, 73137), (819, 24379)]