19775847

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{677}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 32804352

約数和(自身を除く): 13028505

約数列:

[1, 3, 7, 13, 21, 39, 91, 107, 273, 321, 677, 749, 1391, 2031, 2247, 4173, 4739, 8801, 9737, 14217, 26403, 29211, 61607, 72439, 184821, 217317, 507073, 941707, 1521219, 2825121, 6591949, 19775847]

約数ペア:

[(1, 19775847), (3, 6591949), (7, 2825121), (13, 1521219), (21, 941707), (39, 507073), (91, 217317), (107, 184821), (273, 72439), (321, 61607), (677, 29211), (749, 26403), (1391, 14217), (2031, 9737), (2247, 8801), (4173, 4739)]