28542213

素因数分解:

$3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:799

約数の個数: 40

約数和(自身を含む): 49484160

約数和(自身を除く): 20941947

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 81, 189, 213, 497, 567, 639, 709, 1491, 1917, 2127, 4473, 4963, 5751, 6381, 13419, 14889, 19143, 40257, 44667, 50339, 57429, 134001, 151017, 352373, 402003, 453051, 1057119, 1359153, 3171357, 4077459, 9514071, 28542213]

約数ペア:

[(1, 28542213), (3, 9514071), (7, 4077459), (9, 3171357), (21, 1359153), (27, 1057119), (63, 453051), (71, 402003), (81, 352373), (189, 151017), (213, 134001), (497, 57429), (567, 50339), (639, 44667), (709, 40257), (1491, 19143), (1917, 14889), (2127, 13419), (4473, 6381), (4963, 5751)]