21037492

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 43731072

約数和(自身を除く): 22693580

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 101, 172, 173, 202, 301, 346, 404, 602, 692, 707, 1204, 1211, 1414, 2422, 2828, 4343, 4844, 7439, 8686, 14878, 17372, 17473, 29756, 30401, 34946, 52073, 60802, 69892, 104146, 121604, 122311, 208292, 244622, 489244, 751339, 1502678, 3005356, 5259373, 10518746, 21037492]

約数ペア:

[(1, 21037492), (2, 10518746), (4, 5259373), (7, 3005356), (14, 1502678), (28, 751339), (43, 489244), (86, 244622), (101, 208292), (172, 122311), (173, 121604), (202, 104146), (301, 69892), (346, 60802), (404, 52073), (602, 34946), (692, 30401), (707, 29756), (1204, 17473), (1211, 17372), (1414, 14878), (2422, 8686), (2828, 7439), (4343, 4844)]