28743897

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{499}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 47488000

約数和(自身を除く): 18744103

約数列:

[1, 3, 7, 13, 21, 39, 91, 211, 273, 499, 633, 1477, 1497, 2743, 3493, 4431, 6487, 8229, 10479, 19201, 19461, 45409, 57603, 105289, 136227, 315867, 737023, 1368757, 2211069, 4106271, 9581299, 28743897]

約数ペア:

[(1, 28743897), (3, 9581299), (7, 4106271), (13, 2211069), (21, 1368757), (39, 737023), (91, 315867), (211, 136227), (273, 105289), (499, 57603), (633, 45409), (1477, 19461), (1497, 19201), (2743, 10479), (3493, 8229), (4431, 6487)]