21065433

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 30284928

約数和(自身を除く): 9219495

約数列:

[1, 3, 19, 53, 57, 159, 361, 367, 1007, 1083, 1101, 3021, 6973, 19133, 19451, 20919, 57399, 58353, 132487, 369569, 397461, 1108707, 7021811, 21065433]

約数ペア:

[(1, 21065433), (3, 7021811), (19, 1108707), (53, 397461), (57, 369569), (159, 132487), (361, 58353), (367, 57399), (1007, 20919), (1083, 19451), (1101, 19133), (3021, 6973)]