28620487

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 35038080

約数和(自身を除く): 6417593

約数列:

[1, 7, 23, 59, 131, 161, 413, 529, 917, 1357, 3013, 3703, 7729, 9499, 21091, 31211, 54103, 69299, 177767, 218477, 485093, 1244369, 4088641, 28620487]

約数ペア:

[(1, 28620487), (7, 4088641), (23, 1244369), (59, 485093), (131, 218477), (161, 177767), (413, 69299), (529, 54103), (917, 31211), (1357, 21091), (3013, 9499), (3703, 7729)]