21296884

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 22829324

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 113, 127, 212, 226, 254, 371, 452, 508, 742, 791, 889, 1484, 1582, 1778, 3164, 3556, 5989, 6731, 11978, 13462, 14351, 23956, 26924, 28702, 41923, 47117, 57404, 83846, 94234, 100457, 167692, 188468, 200914, 401828, 760603, 1521206, 3042412, 5324221, 10648442, 21296884]

約数ペア:

[(1, 21296884), (2, 10648442), (4, 5324221), (7, 3042412), (14, 1521206), (28, 760603), (53, 401828), (106, 200914), (113, 188468), (127, 167692), (212, 100457), (226, 94234), (254, 83846), (371, 57404), (452, 47117), (508, 41923), (742, 28702), (791, 26924), (889, 23956), (1484, 14351), (1582, 13462), (1778, 11978), (3164, 6731), (3556, 5989)]