51675981

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 81607680

約数和(自身を除く): 29931699

約数列:

[1, 3, 7, 21, 43, 89, 129, 267, 301, 623, 643, 903, 1869, 1929, 3827, 4501, 11481, 13503, 26789, 27649, 57227, 80367, 82947, 171681, 193543, 400589, 580629, 1201767, 2460761, 7382283, 17225327, 51675981]

約数ペア:

[(1, 51675981), (3, 17225327), (7, 7382283), (21, 2460761), (43, 1201767), (89, 580629), (129, 400589), (267, 193543), (301, 171681), (623, 82947), (643, 80367), (903, 57227), (1869, 27649), (1929, 26789), (3827, 13503), (4501, 11481)]