81872073

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 124992000

約数和(自身を除く): 43119927

約数列:

[1, 3, 9, 27, 47, 141, 149, 423, 433, 447, 1269, 1299, 1341, 3897, 4023, 7003, 11691, 20351, 21009, 61053, 63027, 64517, 183159, 189081, 193551, 549477, 580653, 1741959, 3032299, 9096897, 27290691, 81872073]

約数ペア:

[(1, 81872073), (3, 27290691), (9, 9096897), (27, 3032299), (47, 1741959), (141, 580653), (149, 549477), (423, 193551), (433, 189081), (447, 183159), (1269, 64517), (1299, 63027), (1341, 61053), (3897, 21009), (4023, 20351), (7003, 11691)]