20157417

素因数分解:

$3^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 34956416

約数和(自身を除く): 14798999

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 81, 189, 219, 487, 511, 567, 657, 1461, 1533, 1971, 3409, 4383, 4599, 5913, 10227, 13149, 13797, 30681, 35551, 39447, 41391, 92043, 106653, 248857, 276129, 319959, 746571, 959877, 2239713, 2879631, 6719139, 20157417]

約数ペア:

[(1, 20157417), (3, 6719139), (7, 2879631), (9, 2239713), (21, 959877), (27, 746571), (63, 319959), (73, 276129), (81, 248857), (189, 106653), (219, 92043), (487, 41391), (511, 39447), (567, 35551), (657, 30681), (1461, 13797), (1533, 13149), (1971, 10227), (3409, 5913), (4383, 4599)]