21705445

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1091}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 27361152

約数和(自身を除く): 5655707

約数列:

[1, 5, 23, 115, 173, 865, 1091, 3979, 5455, 19895, 25093, 125465, 188743, 943715, 4341089, 21705445]

約数ペア:

[(1, 21705445), (5, 4341089), (23, 943715), (115, 188743), (173, 125465), (865, 25093), (1091, 19895), (3979, 5455)]