21111244

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68543}}^1$

素因数の和:68565

約数の個数: 24

約数和(自身を含む): 46061568

約数和(自身を除く): 24950324

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68543, 137086, 274172, 479801, 753973, 959602, 1507946, 1919204, 3015892, 5277811, 10555622, 21111244]

約数ペア:

[(1, 21111244), (2, 10555622), (4, 5277811), (7, 3015892), (11, 1919204), (14, 1507946), (22, 959602), (28, 753973), (44, 479801), (77, 274172), (154, 137086), (308, 68543)]