21680450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{39419}}^1$

素因数の和:39442

約数の個数: 24

約数和(自身を含む): 43992720

約数和(自身を除く): 22312270

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 39419, 78838, 197095, 394190, 433609, 867218, 985475, 1970950, 2168045, 4336090, 10840225, 21680450]

約数ペア:

[(1, 21680450), (2, 10840225), (5, 4336090), (10, 2168045), (11, 1970950), (22, 985475), (25, 867218), (50, 433609), (55, 394190), (110, 197095), (275, 78838), (550, 39419)]