21353752

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 27375848

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 59, 92, 118, 161, 184, 236, 281, 322, 413, 472, 562, 644, 826, 1124, 1288, 1357, 1652, 1967, 2248, 2714, 3304, 3934, 5428, 6463, 7868, 9499, 10856, 12926, 15736, 16579, 18998, 25852, 33158, 37996, 45241, 51704, 66316, 75992, 90482, 116053, 132632, 180964, 232106, 361928, 381317, 464212, 762634, 928424, 1525268, 2669219, 3050536, 5338438, 10676876, 21353752]

約数ペア:

[(1, 21353752), (2, 10676876), (4, 5338438), (7, 3050536), (8, 2669219), (14, 1525268), (23, 928424), (28, 762634), (46, 464212), (56, 381317), (59, 361928), (92, 232106), (118, 180964), (161, 132632), (184, 116053), (236, 90482), (281, 75992), (322, 66316), (413, 51704), (472, 45241), (562, 37996), (644, 33158), (826, 25852), (1124, 18998), (1288, 16579), (1357, 15736), (1652, 12926), (1967, 10856), (2248, 9499), (2714, 7868), (3304, 6463), (3934, 5428)]