19997064

素因数分解:

$2^3\times 3^3\times {\mathrm{43}}^1\times {\mathrm{2153}}^1$

素因数の和:2211

約数の個数: 64

約数和(自身を含む): 56865600

約数和(自身を除く): 36868536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 86, 108, 129, 172, 216, 258, 344, 387, 516, 774, 1032, 1161, 1548, 2153, 2322, 3096, 4306, 4644, 6459, 8612, 9288, 12918, 17224, 19377, 25836, 38754, 51672, 58131, 77508, 92579, 116262, 155016, 185158, 232524, 277737, 370316, 465048, 555474, 740632, 833211, 1110948, 1666422, 2221896, 2499633, 3332844, 4999266, 6665688, 9998532, 19997064]

約数ペア:

[(1, 19997064), (2, 9998532), (3, 6665688), (4, 4999266), (6, 3332844), (8, 2499633), (9, 2221896), (12, 1666422), (18, 1110948), (24, 833211), (27, 740632), (36, 555474), (43, 465048), (54, 370316), (72, 277737), (86, 232524), (108, 185158), (129, 155016), (172, 116262), (216, 92579), (258, 77508), (344, 58131), (387, 51672), (516, 38754), (774, 25836), (1032, 19377), (1161, 17224), (1548, 12918), (2153, 9288), (2322, 8612), (3096, 6459), (4306, 4644)]