20578962817

素因数分解:

$7^2\times {\mathrm{1319}}^1\times {\mathrm{318407}}^1$

素因数の和:319740

約数の個数: 12

約数和(自身を含む): 23957017920

約数和(自身を除く): 3378055103

約数列:

[1, 7, 49, 1319, 9233, 64631, 318407, 2228849, 15601943, 419978833, 2939851831, 20578962817]

約数ペア:

[(1, 20578962817), (7, 2939851831), (49, 419978833), (1319, 15601943), (9233, 2228849), (64631, 318407)]