28688511

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{787}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 39715200

約数和(自身を除く): 11026689

約数列:

[1, 3, 29, 87, 419, 787, 1257, 2361, 12151, 22823, 36453, 68469, 329753, 989259, 9562837, 28688511]

約数ペア:

[(1, 28688511), (3, 9562837), (29, 989259), (87, 329753), (419, 68469), (787, 36453), (1257, 22823), (2361, 12151)]