20971272

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2903}}^1$

素因数の和:2962

約数の個数: 64

約数和(自身を含む): 61332480

約数和(自身を除く): 40361208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 56, 84, 86, 129, 168, 172, 258, 301, 344, 516, 602, 903, 1032, 1204, 1806, 2408, 2903, 3612, 5806, 7224, 8709, 11612, 17418, 20321, 23224, 34836, 40642, 60963, 69672, 81284, 121926, 124829, 162568, 243852, 249658, 374487, 487704, 499316, 748974, 873803, 998632, 1497948, 1747606, 2621409, 2995896, 3495212, 5242818, 6990424, 10485636, 20971272]

約数ペア:

[(1, 20971272), (2, 10485636), (3, 6990424), (4, 5242818), (6, 3495212), (7, 2995896), (8, 2621409), (12, 1747606), (14, 1497948), (21, 998632), (24, 873803), (28, 748974), (42, 499316), (43, 487704), (56, 374487), (84, 249658), (86, 243852), (129, 162568), (168, 124829), (172, 121926), (258, 81284), (301, 69672), (344, 60963), (516, 40642), (602, 34836), (903, 23224), (1032, 20321), (1204, 17418), (1806, 11612), (2408, 8709), (2903, 7224), (3612, 5806)]