28387957

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 33796224

約数和(自身を除く): 5408267

約数列:

[1, 13, 19, 23, 247, 263, 299, 361, 437, 3419, 4693, 4997, 5681, 6049, 8303, 64961, 78637, 94943, 107939, 114931, 1234259, 1494103, 2183689, 28387957]

約数ペア:

[(1, 28387957), (13, 2183689), (19, 1494103), (23, 1234259), (247, 114931), (263, 107939), (299, 94943), (361, 78637), (437, 64961), (3419, 8303), (4693, 6049), (4997, 5681)]