20395206

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1709}}^1$

素因数の和:1750

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 31315194

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1709, 1989, 3418, 3978, 5127, 5967, 10254, 11934, 15381, 22217, 29053, 30762, 44434, 46143, 58106, 66651, 87159, 92286, 133302, 174318, 199953, 261477, 377689, 399906, 522954, 599859, 755378, 784431, 1133067, 1199718, 1568862, 2266134, 3399201, 6798402, 10197603, 20395206]

約数ペア:

[(1, 20395206), (2, 10197603), (3, 6798402), (6, 3399201), (9, 2266134), (13, 1568862), (17, 1199718), (18, 1133067), (26, 784431), (27, 755378), (34, 599859), (39, 522954), (51, 399906), (54, 377689), (78, 261477), (102, 199953), (117, 174318), (153, 133302), (221, 92286), (234, 87159), (306, 66651), (351, 58106), (442, 46143), (459, 44434), (663, 30762), (702, 29053), (918, 22217), (1326, 15381), (1709, 11934), (1989, 10254), (3418, 5967), (3978, 5127)]