20511328

素因数分解:

$2^5\times {\mathrm{199}}^1\times {\mathrm{3221}}^1$

素因数の和:3430

約数の個数: 24

約数和(自身を含む): 40597200

約数和(自身を除く): 20085872

約数列:

[1, 2, 4, 8, 16, 32, 199, 398, 796, 1592, 3184, 3221, 6368, 6442, 12884, 25768, 51536, 103072, 640979, 1281958, 2563916, 5127832, 10255664, 20511328]

約数ペア:

[(1, 20511328), (2, 10255664), (4, 5127832), (8, 2563916), (16, 1281958), (32, 640979), (199, 103072), (398, 51536), (796, 25768), (1592, 12884), (3184, 6442), (3221, 6368)]