20173494621

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1217}}^1\times {\mathrm{25463}}^1$

素因数の和:26721

約数の個数: 32

約数和(自身を含む): 31759515648

約数和(自身を除く): 11586021027

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 1217, 3651, 8519, 25463, 25557, 37727, 76389, 113181, 178241, 264089, 534723, 789353, 792267, 2368059, 5525471, 16576413, 30988471, 92965413, 216919297, 650757891, 960642601, 2881927803, 6724498207, 20173494621]

約数ペア:

[(1, 20173494621), (3, 6724498207), (7, 2881927803), (21, 960642601), (31, 650757891), (93, 216919297), (217, 92965413), (651, 30988471), (1217, 16576413), (3651, 5525471), (8519, 2368059), (25463, 792267), (25557, 789353), (37727, 534723), (76389, 264089), (113181, 178241)]