20619018

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{163643}}^1$

素因数の和:163658

約数の個数: 24

約数和(自身を含む): 51056928

約数和(自身を除く): 30437910

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 163643, 327286, 490929, 981858, 1145501, 1472787, 2291002, 2945574, 3436503, 6873006, 10309509, 20619018]

約数ペア:

[(1, 20619018), (2, 10309509), (3, 6873006), (6, 3436503), (7, 2945574), (9, 2291002), (14, 1472787), (18, 1145501), (21, 981858), (42, 490929), (63, 327286), (126, 163643)]