28286271

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{577}}^1$

素因数の和:1015

約数の個数: 24

約数和(自身を含む): 44182320

約数和(自身を除く): 15896049

約数列:

[1, 3, 9, 13, 39, 117, 419, 577, 1257, 1731, 3771, 5193, 5447, 7501, 16341, 22503, 49023, 67509, 241763, 725289, 2175867, 3142919, 9428757, 28286271]

約数ペア:

[(1, 28286271), (3, 9428757), (9, 3142919), (13, 2175867), (39, 725289), (117, 241763), (419, 67509), (577, 49023), (1257, 22503), (1731, 16341), (3771, 7501), (5193, 5447)]