21058563

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 30238272

約数和(自身を除く): 9179709

約数列:

[1, 3, 17, 51, 107, 227, 289, 321, 681, 867, 1819, 3859, 5457, 11577, 24289, 30923, 65603, 72867, 92769, 196809, 412913, 1238739, 7019521, 21058563]

約数ペア:

[(1, 21058563), (3, 7019521), (17, 1238739), (51, 412913), (107, 196809), (227, 92769), (289, 72867), (321, 65603), (681, 30923), (867, 24289), (1819, 11577), (3859, 5457)]