1639771637

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{128923}}^1$

素因数の和:129032

約数の個数: 16

約数和(自身を含む): 1980272640

約数和(自身を除く): 340501003

約数列:

[1, 7, 23, 79, 161, 553, 1817, 12719, 128923, 902461, 2965229, 10184917, 20756603, 71294419, 234253091, 1639771637]

約数ペア:

[(1, 1639771637), (7, 234253091), (23, 71294419), (79, 20756603), (161, 10184917), (553, 2965229), (1817, 902461), (12719, 128923)]