2156973

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7901}}^1$

素因数の和:7924

約数の個数: 16

約数和(自身を含む): 3540096

約数和(自身を除く): 1383123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 7901, 23703, 55307, 102713, 165921, 308139, 718991, 2156973]

約数ペア:

[(1, 2156973), (3, 718991), (7, 308139), (13, 165921), (21, 102713), (39, 55307), (91, 23703), (273, 7901)]