21712966

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 16897466

約数列:

[1, 2, 11, 22, 23, 46, 47, 83, 94, 121, 166, 242, 253, 506, 517, 913, 1034, 1081, 1826, 1909, 2162, 2783, 3818, 3901, 5566, 5687, 7802, 10043, 11374, 11891, 20086, 20999, 23782, 41998, 42911, 85822, 89723, 130801, 179446, 230989, 261602, 461978, 472021, 944042, 986953, 1973906, 10856483, 21712966]

約数ペア:

[(1, 21712966), (2, 10856483), (11, 1973906), (22, 986953), (23, 944042), (46, 472021), (47, 461978), (83, 261602), (94, 230989), (121, 179446), (166, 130801), (242, 89723), (253, 85822), (506, 42911), (517, 41998), (913, 23782), (1034, 20999), (1081, 20086), (1826, 11891), (1909, 11374), (2162, 10043), (2783, 7802), (3818, 5687), (3901, 5566)]