28362609

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 20885391

約数列:

[1, 3, 9, 11, 27, 29, 33, 37, 87, 89, 99, 111, 261, 267, 297, 319, 333, 407, 783, 801, 957, 979, 999, 1073, 1221, 2403, 2581, 2871, 2937, 3219, 3293, 3663, 7743, 8613, 8811, 9657, 9879, 10989, 11803, 23229, 26433, 28391, 28971, 29637, 35409, 36223, 69687, 85173, 88911, 95497, 106227, 108669, 255519, 286491, 318681, 326007, 766557, 859473, 978021, 1050467, 2578419, 3151401, 9454203, 28362609]

約数ペア:

[(1, 28362609), (3, 9454203), (9, 3151401), (11, 2578419), (27, 1050467), (29, 978021), (33, 859473), (37, 766557), (87, 326007), (89, 318681), (99, 286491), (111, 255519), (261, 108669), (267, 106227), (297, 95497), (319, 88911), (333, 85173), (407, 69687), (783, 36223), (801, 35409), (957, 29637), (979, 28971), (999, 28391), (1073, 26433), (1221, 23229), (2403, 11803), (2581, 10989), (2871, 9879), (2937, 9657), (3219, 8811), (3293, 8613), (3663, 7743)]