21865212

素因数分解:

$2^2\times 3^2\times {\mathrm{491}}^1\times {\mathrm{1237}}^1$

素因数の和:1738

約数の個数: 36

約数和(自身を含む): 55427736

約数和(自身を除く): 33562524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 491, 982, 1237, 1473, 1964, 2474, 2946, 3711, 4419, 4948, 5892, 7422, 8838, 11133, 14844, 17676, 22266, 44532, 607367, 1214734, 1822101, 2429468, 3644202, 5466303, 7288404, 10932606, 21865212]

約数ペア:

[(1, 21865212), (2, 10932606), (3, 7288404), (4, 5466303), (6, 3644202), (9, 2429468), (12, 1822101), (18, 1214734), (36, 607367), (491, 44532), (982, 22266), (1237, 17676), (1473, 14844), (1964, 11133), (2474, 8838), (2946, 7422), (3711, 5892), (4419, 4948)]