21373119

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 33926400

約数和(自身を除く): 12553281

約数列:

[1, 3, 9, 19, 27, 57, 61, 171, 183, 513, 549, 683, 1159, 1647, 2049, 3477, 6147, 10431, 12977, 18441, 31293, 38931, 41663, 116793, 124989, 350379, 374967, 791597, 1124901, 2374791, 7124373, 21373119]

約数ペア:

[(1, 21373119), (3, 7124373), (9, 2374791), (19, 1124901), (27, 791597), (57, 374967), (61, 350379), (171, 124989), (183, 116793), (513, 41663), (549, 38931), (683, 31293), (1159, 18441), (1647, 12977), (2049, 10431), (3477, 6147)]