21977144

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 49904640

約数和(自身を除く): 27927496

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 113, 151, 161, 184, 226, 302, 322, 452, 604, 644, 791, 904, 1057, 1208, 1288, 1582, 2114, 2599, 3164, 3473, 4228, 5198, 6328, 6946, 8456, 10396, 13892, 17063, 18193, 20792, 24311, 27784, 34126, 36386, 48622, 68252, 72772, 97244, 119441, 136504, 145544, 194488, 238882, 392449, 477764, 784898, 955528, 1569796, 2747143, 3139592, 5494286, 10988572, 21977144]

約数ペア:

[(1, 21977144), (2, 10988572), (4, 5494286), (7, 3139592), (8, 2747143), (14, 1569796), (23, 955528), (28, 784898), (46, 477764), (56, 392449), (92, 238882), (113, 194488), (151, 145544), (161, 136504), (184, 119441), (226, 97244), (302, 72772), (322, 68252), (452, 48622), (604, 36386), (644, 34126), (791, 27784), (904, 24311), (1057, 20792), (1208, 18193), (1288, 17063), (1582, 13892), (2114, 10396), (2599, 8456), (3164, 6946), (3473, 6328), (4228, 5198)]