20799128

素因数分解:

$2^3\times 7^2\times {\mathrm{97}}^1\times {\mathrm{547}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 45916920

約数和(自身を除く): 25117792

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 97, 98, 194, 196, 388, 392, 547, 679, 776, 1094, 1358, 2188, 2716, 3829, 4376, 4753, 5432, 7658, 9506, 15316, 19012, 26803, 30632, 38024, 53059, 53606, 106118, 107212, 212236, 214424, 371413, 424472, 742826, 1485652, 2599891, 2971304, 5199782, 10399564, 20799128]

約数ペア:

[(1, 20799128), (2, 10399564), (4, 5199782), (7, 2971304), (8, 2599891), (14, 1485652), (28, 742826), (49, 424472), (56, 371413), (97, 214424), (98, 212236), (194, 107212), (196, 106118), (388, 53606), (392, 53059), (547, 38024), (679, 30632), (776, 26803), (1094, 19012), (1358, 15316), (2188, 9506), (2716, 7658), (3829, 5432), (4376, 4753)]