28010169

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 54

約数和(自身を含む): 47772270

約数和(自身を除く): 19762101

約数列:

[1, 3, 9, 11, 17, 33, 51, 89, 99, 121, 153, 187, 267, 289, 363, 561, 801, 867, 979, 1089, 1513, 1683, 2057, 2601, 2937, 3179, 4539, 6171, 8811, 9537, 10769, 13617, 16643, 18513, 25721, 28611, 32307, 34969, 49929, 77163, 96921, 104907, 149787, 183073, 231489, 282931, 314721, 549219, 848793, 1647657, 2546379, 3112241, 9336723, 28010169]

約数ペア:

[(1, 28010169), (3, 9336723), (9, 3112241), (11, 2546379), (17, 1647657), (33, 848793), (51, 549219), (89, 314721), (99, 282931), (121, 231489), (153, 183073), (187, 149787), (267, 104907), (289, 96921), (363, 77163), (561, 49929), (801, 34969), (867, 32307), (979, 28611), (1089, 25721), (1513, 18513), (1683, 16643), (2057, 13617), (2601, 10769), (2937, 9537), (3179, 8811), (4539, 6171)]