131421423

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1451}}^1$

素因数の和:1707

約数の個数: 32

約数和(自身を含む): 211875840

約数和(自身を除く): 80454417

約数列:

[1, 3, 7, 19, 21, 57, 133, 227, 399, 681, 1451, 1589, 4313, 4353, 4767, 10157, 12939, 27569, 30191, 30471, 82707, 90573, 192983, 329377, 578949, 988131, 2305639, 6258163, 6916917, 18774489, 43807141, 131421423]

約数ペア:

[(1, 131421423), (3, 43807141), (7, 18774489), (19, 6916917), (21, 6258163), (57, 2305639), (133, 988131), (227, 578949), (399, 329377), (681, 192983), (1451, 90573), (1589, 82707), (4313, 30471), (4353, 30191), (4767, 27569), (10157, 12939)]