20297963

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1051}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 24238080

約数和(自身を除く): 3940117

約数列:

[1, 7, 31, 89, 217, 623, 1051, 2759, 7357, 19313, 32581, 93539, 228067, 654773, 2899709, 20297963]

約数ペア:

[(1, 20297963), (7, 2899709), (31, 654773), (89, 228067), (217, 93539), (623, 32581), (1051, 19313), (2759, 7357)]