20486978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{1217}}^1$

素因数の和:1681

約数の個数: 16

約数和(自身を含む): 32447520

約数和(自身を除く): 11960542

約数列:

[1, 2, 19, 38, 443, 886, 1217, 2434, 8417, 16834, 23123, 46246, 539131, 1078262, 10243489, 20486978]

約数ペア:

[(1, 20486978), (2, 10243489), (19, 1078262), (38, 539131), (443, 46246), (886, 23123), (1217, 16834), (2434, 8417)]