21441981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1033}}^1$

素因数の和:1101

約数の個数: 32

約数和(自身を含む): 33948288

約数和(自身を除く): 12506307

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 407, 561, 629, 1033, 1221, 1887, 3099, 6919, 11363, 17561, 20757, 34089, 38221, 52683, 114663, 193171, 420431, 579513, 649757, 1261293, 1949271, 7147327, 21441981]

約数ペア:

[(1, 21441981), (3, 7147327), (11, 1949271), (17, 1261293), (33, 649757), (37, 579513), (51, 420431), (111, 193171), (187, 114663), (407, 52683), (561, 38221), (629, 34089), (1033, 20757), (1221, 17561), (1887, 11363), (3099, 6919)]