20529719

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1063}}^1$

素因数の和:1190

約数の個数: 16

約数和(自身を含む): 24514560

約数和(自身を除く): 3984841

約数列:

[1, 7, 31, 89, 217, 623, 1063, 2759, 7441, 19313, 32953, 94607, 230671, 662249, 2932817, 20529719]

約数ペア:

[(1, 20529719), (7, 2932817), (31, 662249), (89, 230671), (217, 94607), (623, 32953), (1063, 19313), (2759, 7441)]