201421205

素因数分解:

$5^1\times {\mathrm{167}}^1\times {\mathrm{463}}^1\times {\mathrm{521}}^1$

素因数の和:1156

約数の個数: 16

約数和(自身を含む): 244145664

約数和(自身を除く): 42724459

約数列:

[1, 5, 167, 463, 521, 835, 2315, 2605, 77321, 87007, 241223, 386605, 435035, 1206115, 40284241, 201421205]

約数ペア:

[(1, 201421205), (5, 40284241), (167, 1206115), (463, 435035), (521, 386605), (835, 241223), (2315, 87007), (2605, 77321)]