21668135

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{911}}^1$

素因数の和:1054

約数の個数: 16

約数和(自身を含む): 26790912

約数和(自身を除く): 5122777

約数列:

[1, 5, 67, 71, 335, 355, 911, 4555, 4757, 23785, 61037, 64681, 305185, 323405, 4333627, 21668135]

約数ペア:

[(1, 21668135), (5, 4333627), (67, 323405), (71, 305185), (335, 64681), (355, 61037), (911, 23785), (4555, 4757)]