21011312

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6469}}^1$

素因数の和:6513

約数の個数: 40

約数和(自身を含む): 48136800

約数和(自身を除く): 27125488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6469, 12938, 25876, 45283, 51752, 90566, 103504, 181132, 187601, 362264, 375202, 724528, 750404, 1313207, 1500808, 2626414, 3001616, 5252828, 10505656, 21011312]

約数ペア:

[(1, 21011312), (2, 10505656), (4, 5252828), (7, 3001616), (8, 2626414), (14, 1500808), (16, 1313207), (28, 750404), (29, 724528), (56, 375202), (58, 362264), (112, 187601), (116, 181132), (203, 103504), (232, 90566), (406, 51752), (464, 45283), (812, 25876), (1624, 12938), (3248, 6469)]