21163072

素因数分解:

$2^6\times 7^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:603

約数の個数: 56

約数和(自身を含む): 48589184

約数和(自身を除く): 27426112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 97, 112, 194, 224, 388, 448, 487, 679, 776, 974, 1358, 1552, 1948, 2716, 3104, 3409, 3896, 5432, 6208, 6818, 7792, 10864, 13636, 15584, 21728, 27272, 31168, 43456, 47239, 54544, 94478, 109088, 188956, 218176, 330673, 377912, 661346, 755824, 1322692, 1511648, 2645384, 3023296, 5290768, 10581536, 21163072]

約数ペア:

[(1, 21163072), (2, 10581536), (4, 5290768), (7, 3023296), (8, 2645384), (14, 1511648), (16, 1322692), (28, 755824), (32, 661346), (56, 377912), (64, 330673), (97, 218176), (112, 188956), (194, 109088), (224, 94478), (388, 54544), (448, 47239), (487, 43456), (679, 31168), (776, 27272), (974, 21728), (1358, 15584), (1552, 13636), (1948, 10864), (2716, 7792), (3104, 6818), (3409, 6208), (3896, 5432)]