20218384

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9091}}^1$

素因数の和:9238

約数の個数: 20

約数和(自身を含む): 39459280

約数和(自身を除く): 19240896

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9091, 18182, 36364, 72728, 145456, 1263649, 2527298, 5054596, 10109192, 20218384]

約数ペア:

[(1, 20218384), (2, 10109192), (4, 5054596), (8, 2527298), (16, 1263649), (139, 145456), (278, 72728), (556, 36364), (1112, 18182), (2224, 9091)]