28657299

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 43591680

約数和(自身を除く): 14934381

約数列:

[1, 3, 11, 31, 33, 93, 109, 257, 327, 341, 771, 1023, 1199, 2827, 3379, 3597, 7967, 8481, 10137, 23901, 28013, 37169, 84039, 87637, 111507, 262911, 308143, 868403, 924429, 2605209, 9552433, 28657299]

約数ペア:

[(1, 28657299), (3, 9552433), (11, 2605209), (31, 924429), (33, 868403), (93, 308143), (109, 262911), (257, 111507), (327, 87637), (341, 84039), (771, 37169), (1023, 28013), (1199, 23901), (2827, 10137), (3379, 8481), (3597, 7967)]