87381

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:105

約数の個数: 24

約数和(自身を含む): 153920

約数和(自身を除く): 66539

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 73, 133, 171, 219, 399, 511, 657, 1197, 1387, 1533, 4161, 4599, 9709, 12483, 29127, 87381]

約数ペア:

[(1, 87381), (3, 29127), (7, 12483), (9, 9709), (19, 4599), (21, 4161), (57, 1533), (63, 1387), (73, 1197), (133, 657), (171, 511), (219, 399)]