20161971765

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{194717}}^1$

素因数の和:194803

約数の個数: 64

約数和(自身を含む): 39255148800

約数和(自身を除く): 19093177035

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 59, 65, 117, 135, 177, 195, 295, 351, 531, 585, 767, 885, 1593, 1755, 2301, 2655, 3835, 6903, 7965, 11505, 20709, 34515, 103545, 194717, 584151, 973585, 1752453, 2531321, 2920755, 5257359, 7593963, 8762265, 11488303, 12656605, 22781889, 26286795, 34464909, 37969815, 57441515, 68345667, 103394727, 113909445, 149347939, 172324545, 310184181, 341728335, 448043817, 516973635, 746739695, 1344131451, 1550920905, 2240219085, 4032394353, 6720657255, 20161971765]

約数ペア:

[(1, 20161971765), (3, 6720657255), (5, 4032394353), (9, 2240219085), (13, 1550920905), (15, 1344131451), (27, 746739695), (39, 516973635), (45, 448043817), (59, 341728335), (65, 310184181), (117, 172324545), (135, 149347939), (177, 113909445), (195, 103394727), (295, 68345667), (351, 57441515), (531, 37969815), (585, 34464909), (767, 26286795), (885, 22781889), (1593, 12656605), (1755, 11488303), (2301, 8762265), (2655, 7593963), (3835, 5257359), (6903, 2920755), (7965, 2531321), (11505, 1752453), (20709, 973585), (34515, 584151), (103545, 194717)]