28972539

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 47155200

約数和(自身を除く): 18182661

約数列:

[1, 3, 9, 17, 27, 47, 51, 79, 141, 153, 237, 289, 423, 459, 711, 799, 867, 1269, 1343, 2133, 2397, 2601, 3713, 4029, 7191, 7803, 11139, 12087, 13583, 21573, 22831, 33417, 36261, 40749, 63121, 68493, 100251, 122247, 189363, 205479, 366741, 568089, 616437, 1073057, 1704267, 3219171, 9657513, 28972539]

約数ペア:

[(1, 28972539), (3, 9657513), (9, 3219171), (17, 1704267), (27, 1073057), (47, 616437), (51, 568089), (79, 366741), (141, 205479), (153, 189363), (237, 122247), (289, 100251), (423, 68493), (459, 63121), (711, 40749), (799, 36261), (867, 33417), (1269, 22831), (1343, 21573), (2133, 13583), (2397, 12087), (2601, 11139), (3713, 7803), (4029, 7191)]