20450731

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1291}}^1$

素因数の和:1402

約数の個数: 16

約数和(自身を含む): 24475648

約数和(自身を除く): 4024917

約数列:

[1, 7, 31, 73, 217, 511, 1291, 2263, 9037, 15841, 40021, 94243, 280147, 659701, 2921533, 20450731]

約数ペア:

[(1, 20450731), (7, 2921533), (31, 659701), (73, 280147), (217, 94243), (511, 40021), (1291, 15841), (2263, 9037)]