19874888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3181}}^1$

素因数の和:3269

約数の個数: 32

約数和(自身を含む): 41238720

約数和(自身を除く): 21363832

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 3181, 6248, 6362, 12724, 25448, 34991, 69982, 139964, 225851, 279928, 451702, 903404, 1806808, 2484361, 4968722, 9937444, 19874888]

約数ペア:

[(1, 19874888), (2, 9937444), (4, 4968722), (8, 2484361), (11, 1806808), (22, 903404), (44, 451702), (71, 279928), (88, 225851), (142, 139964), (284, 69982), (568, 34991), (781, 25448), (1562, 12724), (3124, 6362), (3181, 6248)]