2178115918

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{1997}}^1\times {\mathrm{4507}}^1$

素因数の和:6528

約数の個数: 24

約数和(自身を含む): 3593786616

約数和(自身を除く): 1415670698

約数列:

[1, 2, 11, 22, 121, 242, 1997, 3994, 4507, 9014, 21967, 43934, 49577, 99154, 241637, 483274, 545347, 1090694, 9000479, 18000958, 99005269, 198010538, 1089057959, 2178115918]

約数ペア:

[(1, 2178115918), (2, 1089057959), (11, 198010538), (22, 99005269), (121, 18000958), (242, 9000479), (1997, 1090694), (3994, 545347), (4507, 483274), (9014, 241637), (21967, 99154), (43934, 49577)]