19784973

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13711}}^1$

素因数の和:13764

約数の個数: 16

約数和(自身を含む): 29179136

約数和(自身を除く): 9394163

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 13711, 41133, 178243, 507307, 534729, 1521921, 6594991, 19784973]

約数ペア:

[(1, 19784973), (3, 6594991), (13, 1521921), (37, 534729), (39, 507307), (111, 178243), (481, 41133), (1443, 13711)]