31089681

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1367}}^1$

素因数の和:1418

約数の個数: 36

約数和(自身を含む): 54205632

約数和(自身を除く): 23115951

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 1367, 2527, 3249, 4101, 7581, 9569, 12303, 22743, 25973, 28707, 77919, 86121, 181811, 233757, 493487, 545433, 1480461, 1636299, 3454409, 4441383, 10363227, 31089681]

約数ペア:

[(1, 31089681), (3, 10363227), (7, 4441383), (9, 3454409), (19, 1636299), (21, 1480461), (57, 545433), (63, 493487), (133, 233757), (171, 181811), (361, 86121), (399, 77919), (1083, 28707), (1197, 25973), (1367, 22743), (2527, 12303), (3249, 9569), (4101, 7581)]