311995229

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1123}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 398813184

約数和(自身を除く): 86817955

約数列:

[1, 7, 13, 43, 71, 91, 301, 497, 559, 923, 1123, 3053, 3913, 6461, 7861, 14599, 21371, 39689, 48289, 79733, 102193, 277823, 338023, 558131, 627757, 1036529, 3428519, 4394299, 7255703, 23999633, 44570747, 311995229]

約数ペア:

[(1, 311995229), (7, 44570747), (13, 23999633), (43, 7255703), (71, 4394299), (91, 3428519), (301, 1036529), (497, 627757), (559, 558131), (923, 338023), (1123, 277823), (3053, 102193), (3913, 79733), (6461, 48289), (7861, 39689), (14599, 21371)]