21060189

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:762

約数の個数: 32

約数和(自身を含む): 33430400

約数和(自身を除く): 12370211

約数列:

[1, 3, 9, 19, 27, 57, 61, 171, 183, 513, 549, 673, 1159, 1647, 2019, 3477, 6057, 10431, 12787, 18171, 31293, 38361, 41053, 115083, 123159, 345249, 369477, 780007, 1108431, 2340021, 7020063, 21060189]

約数ペア:

[(1, 21060189), (3, 7020063), (9, 2340021), (19, 1108431), (27, 780007), (57, 369477), (61, 345249), (171, 123159), (183, 115083), (513, 41053), (549, 38361), (673, 31293), (1159, 18171), (1647, 12787), (2019, 10431), (3477, 6057)]