20516776

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3557}}^1$

素因数の和:3673

約数の個数: 32

約数和(自身を含む): 44403840

約数和(自身を除く): 23887064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 3557, 5768, 7114, 14228, 24899, 28456, 49798, 99596, 199192, 366371, 732742, 1465484, 2564597, 2930968, 5129194, 10258388, 20516776]

約数ペア:

[(1, 20516776), (2, 10258388), (4, 5129194), (7, 2930968), (8, 2564597), (14, 1465484), (28, 732742), (56, 366371), (103, 199192), (206, 99596), (412, 49798), (721, 28456), (824, 24899), (1442, 14228), (2884, 7114), (3557, 5768)]