18816447

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9568833

約数列:

[1, 3, 13, 29, 39, 87, 127, 131, 377, 381, 393, 1131, 1651, 1703, 3683, 3799, 4953, 5109, 11049, 11397, 16637, 47879, 49387, 49911, 143637, 148161, 216281, 482473, 648843, 1447419, 6272149, 18816447]

約数ペア:

[(1, 18816447), (3, 6272149), (13, 1447419), (29, 648843), (39, 482473), (87, 216281), (127, 148161), (131, 143637), (377, 49911), (381, 49387), (393, 47879), (1131, 16637), (1651, 11397), (1703, 11049), (3683, 5109), (3799, 4953)]