12681915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1213}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 22026816

約数和(自身を除く): 9344901

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 1213, 2091, 3485, 3639, 6065, 10455, 18195, 20621, 49733, 61863, 103105, 149199, 248665, 309315, 745995, 845461, 2536383, 4227305, 12681915]

約数ペア:

[(1, 12681915), (3, 4227305), (5, 2536383), (15, 845461), (17, 745995), (41, 309315), (51, 248665), (85, 149199), (123, 103105), (205, 61863), (255, 49733), (615, 20621), (697, 18195), (1213, 10455), (2091, 6065), (3485, 3639)]