28503447

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2819

約数の個数: 24

約数和(自身を含む): 44848512

約数和(自身を除く): 16345065

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 2731, 3479, 8193, 10437, 19117, 57351, 133819, 193901, 401457, 581703, 1357307, 4071921, 9501149, 28503447]

約数ペア:

[(1, 28503447), (3, 9501149), (7, 4071921), (21, 1357307), (49, 581703), (71, 401457), (147, 193901), (213, 133819), (497, 57351), (1491, 19117), (2731, 10437), (3479, 8193)]