21000844468

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{3533}}^1\times {\mathrm{10691}}^1$

素因数の和:14367

約数の個数: 24

約数和(自身を含む): 37029817440

約数和(自身を除く): 16028972972

約数列:

[1, 2, 4, 139, 278, 556, 3533, 7066, 10691, 14132, 21382, 42764, 491087, 982174, 1486049, 1964348, 2972098, 5944196, 37771303, 75542606, 151085212, 5250211117, 10500422234, 21000844468]

約数ペア:

[(1, 21000844468), (2, 10500422234), (4, 5250211117), (139, 151085212), (278, 75542606), (556, 37771303), (3533, 5944196), (7066, 2972098), (10691, 1964348), (14132, 1486049), (21382, 982174), (42764, 491087)]