87783921

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{1493}}^1$

素因数の和:1685

約数の個数: 24

約数和(自身を含む): 130515840

約数和(自身を除く): 42731919

約数列:

[1, 3, 9, 47, 139, 141, 417, 423, 1251, 1493, 4479, 6533, 13437, 19599, 58797, 70171, 207527, 210513, 622581, 631539, 1867743, 9753769, 29261307, 87783921]

約数ペア:

[(1, 87783921), (3, 29261307), (9, 9753769), (47, 1867743), (139, 631539), (141, 622581), (417, 210513), (423, 207527), (1251, 70171), (1493, 58797), (4479, 19599), (6533, 13437)]