21473276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3511}}^1$

素因数の和:3665

約数の個数: 24

約数和(自身を含む): 41301120

約数和(自身を除く): 19827844

約数列:

[1, 2, 4, 11, 22, 44, 139, 278, 556, 1529, 3058, 3511, 6116, 7022, 14044, 38621, 77242, 154484, 488029, 976058, 1952116, 5368319, 10736638, 21473276]

約数ペア:

[(1, 21473276), (2, 10736638), (4, 5368319), (11, 1952116), (22, 976058), (44, 488029), (139, 154484), (278, 77242), (556, 38621), (1529, 14044), (3058, 7022), (3511, 6116)]