21945055810

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2477}}^1\times {\mathrm{6763}}^1$

素因数の和:9378

約数の個数: 32

約数和(自身を含む): 39824592192

約数和(自身を除く): 17879536382

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 2477, 4954, 6763, 12385, 13526, 24770, 33815, 67630, 324487, 648974, 885953, 1622435, 1771906, 3244870, 4429765, 8859530, 16751951, 33503902, 83759755, 167519510, 2194505581, 4389011162, 10972527905, 21945055810]

約数ペア:

[(1, 21945055810), (2, 10972527905), (5, 4389011162), (10, 2194505581), (131, 167519510), (262, 83759755), (655, 33503902), (1310, 16751951), (2477, 8859530), (4954, 4429765), (6763, 3244870), (12385, 1771906), (13526, 1622435), (24770, 885953), (33815, 648974), (67630, 324487)]