20997804969

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{571}}^1\times {\mathrm{32173}}^1$

素因数の和:32877

約数の個数: 24

約数和(自身を含む): 30623470592

約数和(自身を除く): 9625665623

約数列:

[1, 3, 9, 127, 381, 571, 1143, 1713, 5139, 32173, 72517, 96519, 217551, 289557, 652653, 4085971, 12257913, 18370783, 36773739, 55112349, 165337047, 2333089441, 6999268323, 20997804969]

約数ペア:

[(1, 20997804969), (3, 6999268323), (9, 2333089441), (127, 165337047), (381, 55112349), (571, 36773739), (1143, 18370783), (1713, 12257913), (5139, 4085971), (32173, 652653), (72517, 289557), (96519, 217551)]