19971585

素因数分解:

$3^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1279}}^1$

素因数の和:1637

約数の個数: 24

約数和(自身を含む): 34744320

約数和(自身を除く): 14772735

約数列:

[1, 3, 5, 9, 15, 45, 347, 1041, 1279, 1735, 3123, 3837, 5205, 6395, 11511, 15615, 19185, 57555, 443813, 1331439, 2219065, 3994317, 6657195, 19971585]

約数ペア:

[(1, 19971585), (3, 6657195), (5, 3994317), (9, 2219065), (15, 1331439), (45, 443813), (347, 57555), (1041, 19185), (1279, 15615), (1735, 11511), (3123, 6395), (3837, 5205)]