28485009

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 22058991

約数列:

[1, 3, 7, 9, 19, 21, 53, 57, 63, 133, 159, 171, 371, 399, 449, 477, 1007, 1113, 1197, 1347, 3021, 3143, 3339, 4041, 7049, 8531, 9063, 9429, 21147, 23797, 25593, 28287, 59717, 63441, 71391, 76779, 166579, 179151, 214173, 452143, 499737, 537453, 1356429, 1499211, 3165001, 4069287, 9495003, 28485009]

約数ペア:

[(1, 28485009), (3, 9495003), (7, 4069287), (9, 3165001), (19, 1499211), (21, 1356429), (53, 537453), (57, 499737), (63, 452143), (133, 214173), (159, 179151), (171, 166579), (371, 76779), (399, 71391), (449, 63441), (477, 59717), (1007, 28287), (1113, 25593), (1197, 23797), (1347, 21147), (3021, 9429), (3143, 9063), (3339, 8531), (4041, 7049)]