21644140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2917}}^1$

素因数の和:2986

約数の個数: 48

約数和(自身を含む): 52944192

約数和(自身を除く): 31300052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2917, 3710, 5834, 7420, 11668, 14585, 20419, 29170, 40838, 58340, 81676, 102095, 154601, 204190, 309202, 408380, 618404, 773005, 1082207, 1546010, 2164414, 3092020, 4328828, 5411035, 10822070, 21644140]

約数ペア:

[(1, 21644140), (2, 10822070), (4, 5411035), (5, 4328828), (7, 3092020), (10, 2164414), (14, 1546010), (20, 1082207), (28, 773005), (35, 618404), (53, 408380), (70, 309202), (106, 204190), (140, 154601), (212, 102095), (265, 81676), (371, 58340), (530, 40838), (742, 29170), (1060, 20419), (1484, 14585), (1855, 11668), (2917, 7420), (3710, 5834)]