21587763

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2357}}^1$

素因数の和:2474

約数の個数: 16

約数和(自身を含む): 29880576

約数和(自身を除く): 8292813

約数列:

[1, 3, 43, 71, 129, 213, 2357, 3053, 7071, 9159, 101351, 167347, 304053, 502041, 7195921, 21587763]

約数ペア:

[(1, 21587763), (3, 7195921), (43, 502041), (71, 304053), (129, 167347), (213, 101351), (2357, 9159), (3053, 7071)]