19871409

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3217}}^1$

素因数の和:3320

約数の個数: 16

約数和(自身を含む): 27803520

約数和(自身を除く): 7932111

約数列:

[1, 3, 29, 71, 87, 213, 2059, 3217, 6177, 9651, 93293, 228407, 279879, 685221, 6623803, 19871409]

約数ペア:

[(1, 19871409), (3, 6623803), (29, 685221), (71, 279879), (87, 228407), (213, 93293), (2059, 9651), (3217, 6177)]