28777281

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{7607}}^1$

素因数の和:7720

約数の個数: 16

約数和(自身を含む): 41752704

約数和(自身を除く): 12975423

約数列:

[1, 3, 13, 39, 97, 291, 1261, 3783, 7607, 22821, 98891, 296673, 737879, 2213637, 9592427, 28777281]

約数ペア:

[(1, 28777281), (3, 9592427), (13, 2213637), (39, 737879), (97, 296673), (291, 98891), (1261, 22821), (3783, 7607)]