20788473

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{457}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 28359360

約数和(自身を除く): 7570887

約数列:

[1, 3, 59, 177, 257, 457, 771, 1371, 15163, 26963, 45489, 80889, 117449, 352347, 6929491, 20788473]

約数ペア:

[(1, 20788473), (3, 6929491), (59, 352347), (177, 117449), (257, 80889), (457, 45489), (771, 26963), (1371, 15163)]