19970291085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1477639}}^1$

素因数の和:1477717

約数の個数: 32

約数和(自身を含む): 34470385920

約数和(自身を除く): 14500094835

約数列:

[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 2703, 4505, 13515, 1477639, 4432917, 7388195, 22164585, 25119863, 75359589, 78314867, 125599315, 234944601, 376797945, 391574335, 1174723005, 1331352739, 3994058217, 6656763695, 19970291085]

約数ペア:

[(1, 19970291085), (3, 6656763695), (5, 3994058217), (15, 1331352739), (17, 1174723005), (51, 391574335), (53, 376797945), (85, 234944601), (159, 125599315), (255, 78314867), (265, 75359589), (795, 25119863), (901, 22164585), (2703, 7388195), (4505, 4432917), (13515, 1477639)]