20212751

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:183

約数の個数: 24

約数和(自身を含む): 23682960

約数和(自身を除く): 3470209

約数列:

[1, 13, 19, 59, 73, 247, 361, 767, 949, 1121, 1387, 4307, 4693, 14573, 18031, 21299, 26353, 55991, 81833, 276887, 342589, 1063829, 1554827, 20212751]

約数ペア:

[(1, 20212751), (13, 1554827), (19, 1063829), (59, 342589), (73, 276887), (247, 81833), (361, 55991), (767, 26353), (949, 21299), (1121, 18031), (1387, 14573), (4307, 4693)]