15780639

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 24887296

約数和(自身を除く): 9106657

約数列:

[1, 3, 7, 21, 61, 97, 127, 183, 291, 381, 427, 679, 889, 1281, 2037, 2667, 5917, 7747, 12319, 17751, 23241, 36957, 41419, 54229, 86233, 124257, 162687, 258699, 751459, 2254377, 5260213, 15780639]

約数ペア:

[(1, 15780639), (3, 5260213), (7, 2254377), (21, 751459), (61, 258699), (97, 162687), (127, 124257), (183, 86233), (291, 54229), (381, 41419), (427, 36957), (679, 23241), (889, 17751), (1281, 12319), (2037, 7747), (2667, 5917)]