19891748

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{929}}^1$

素因数の和:1087

約数の個数: 24

約数和(自身を含む): 35857080

約数和(自身を除く): 15965332

約数列:

[1, 2, 4, 53, 101, 106, 202, 212, 404, 929, 1858, 3716, 5353, 10706, 21412, 49237, 93829, 98474, 187658, 196948, 375316, 4972937, 9945874, 19891748]

約数ペア:

[(1, 19891748), (2, 9945874), (4, 4972937), (53, 375316), (101, 196948), (106, 187658), (202, 98474), (212, 93829), (404, 49237), (929, 21412), (1858, 10706), (3716, 5353)]