31984905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2917}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 55465344

約数和(自身を除く): 23480439

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 2193, 2917, 3655, 8751, 10965, 14585, 43755, 49589, 125431, 148767, 247945, 376293, 627155, 743835, 1881465, 2132327, 6396981, 10661635, 31984905]

約数ペア:

[(1, 31984905), (3, 10661635), (5, 6396981), (15, 2132327), (17, 1881465), (43, 743835), (51, 627155), (85, 376293), (129, 247945), (215, 148767), (255, 125431), (645, 49589), (731, 43755), (2193, 14585), (2917, 10965), (3655, 8751)]