21989018

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{4799}}^1$

素因数の和:4909

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 12570982

約数列:

[1, 2, 29, 58, 79, 158, 2291, 4582, 4799, 9598, 139171, 278342, 379121, 758242, 10994509, 21989018]

約数ペア:

[(1, 21989018), (2, 10994509), (29, 758242), (58, 379121), (79, 278342), (158, 139171), (2291, 9598), (4582, 4799)]