31506813

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29921}}^1$

素因数の和:29946

約数の個数: 20

約数和(自身を含む): 50687868

約数和(自身を除く): 19181055

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 29921, 89763, 269289, 388973, 807867, 1166919, 2423601, 3500757, 10502271, 31506813]

約数ペア:

[(1, 31506813), (3, 10502271), (9, 3500757), (13, 2423601), (27, 1166919), (39, 807867), (81, 388973), (117, 269289), (351, 89763), (1053, 29921)]