19810532

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6491}}^1$

素因数の和:6611

約数の個数: 24

約数和(自身を含む): 39990720

約数和(自身を除く): 20180188

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6491, 12982, 25964, 45437, 90874, 181748, 707519, 1415038, 2830076, 4952633, 9905266, 19810532]

約数ペア:

[(1, 19810532), (2, 9905266), (4, 4952633), (7, 2830076), (14, 1415038), (28, 707519), (109, 181748), (218, 90874), (436, 45437), (763, 25964), (1526, 12982), (3052, 6491)]