21488753

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 26812800

約数和(自身を除く): 5324047

約数列:

[1, 11, 13, 19, 121, 143, 209, 247, 719, 1573, 2299, 2717, 7909, 9347, 13661, 29887, 86999, 102817, 150271, 177593, 1130987, 1652981, 1953523, 21488753]

約数ペア:

[(1, 21488753), (11, 1953523), (13, 1652981), (19, 1130987), (121, 177593), (143, 150271), (209, 102817), (247, 86999), (719, 29887), (1573, 13661), (2299, 9347), (2717, 7909)]