19813189

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1208

約数の個数: 16

約数和(自身を含む): 22892544

約数和(自身を除く): 3079355

約数列:

[1, 11, 23, 71, 253, 781, 1103, 1633, 12133, 17963, 25369, 78313, 279059, 861443, 1801199, 19813189]

約数ペア:

[(1, 19813189), (11, 1801199), (23, 861443), (71, 279059), (253, 78313), (781, 25369), (1103, 17963), (1633, 12133)]