20541108

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2521}}^1$

素因数の和:2632

約数の個数: 48

約数和(自身を含む): 55362944

約数和(自身を除く): 34821836

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 194, 291, 388, 582, 679, 1164, 1358, 2037, 2521, 2716, 4074, 5042, 7563, 8148, 10084, 15126, 17647, 30252, 35294, 52941, 70588, 105882, 211764, 244537, 489074, 733611, 978148, 1467222, 1711759, 2934444, 3423518, 5135277, 6847036, 10270554, 20541108]

約数ペア:

[(1, 20541108), (2, 10270554), (3, 6847036), (4, 5135277), (6, 3423518), (7, 2934444), (12, 1711759), (14, 1467222), (21, 978148), (28, 733611), (42, 489074), (84, 244537), (97, 211764), (194, 105882), (291, 70588), (388, 52941), (582, 35294), (679, 30252), (1164, 17647), (1358, 15126), (2037, 10084), (2521, 8148), (2716, 7563), (4074, 5042)]