19989756

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{367}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 54250560

約数和(自身を除く): 34260804

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 89, 102, 153, 178, 204, 267, 306, 356, 367, 534, 612, 734, 801, 1068, 1101, 1468, 1513, 1602, 2202, 3026, 3204, 3303, 4404, 4539, 6052, 6239, 6606, 9078, 12478, 13212, 13617, 18156, 18717, 24956, 27234, 32663, 37434, 54468, 56151, 65326, 74868, 97989, 112302, 130652, 195978, 224604, 293967, 391956, 555271, 587934, 1110542, 1175868, 1665813, 2221084, 3331626, 4997439, 6663252, 9994878, 19989756]

約数ペア:

[(1, 19989756), (2, 9994878), (3, 6663252), (4, 4997439), (6, 3331626), (9, 2221084), (12, 1665813), (17, 1175868), (18, 1110542), (34, 587934), (36, 555271), (51, 391956), (68, 293967), (89, 224604), (102, 195978), (153, 130652), (178, 112302), (204, 97989), (267, 74868), (306, 65326), (356, 56151), (367, 54468), (534, 37434), (612, 32663), (734, 27234), (801, 24956), (1068, 18717), (1101, 18156), (1468, 13617), (1513, 13212), (1602, 12478), (2202, 9078), (3026, 6606), (3204, 6239), (3303, 6052), (4404, 4539)]