20197737

素因数分解:

$3^2\times 7^1\times {\mathrm{523}}^1\times {\mathrm{613}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 33460544

約数和(自身を除く): 13262807

約数列:

[1, 3, 7, 9, 21, 63, 523, 613, 1569, 1839, 3661, 4291, 4707, 5517, 10983, 12873, 32949, 38619, 320599, 961797, 2244193, 2885391, 6732579, 20197737]

約数ペア:

[(1, 20197737), (3, 6732579), (7, 2885391), (9, 2244193), (21, 961797), (63, 320599), (523, 38619), (613, 32949), (1569, 12873), (1839, 10983), (3661, 5517), (4291, 4707)]