20289332

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1697}}^1$

素因数の和:1776

約数の個数: 36

約数和(自身を含む): 42005124

約数和(自身を除く): 21715792

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1697, 1708, 2989, 3394, 5978, 6788, 11879, 11956, 23758, 47516, 83153, 103517, 166306, 207034, 332612, 414068, 724619, 1449238, 2898476, 5072333, 10144666, 20289332]

約数ペア:

[(1, 20289332), (2, 10144666), (4, 5072333), (7, 2898476), (14, 1449238), (28, 724619), (49, 414068), (61, 332612), (98, 207034), (122, 166306), (196, 103517), (244, 83153), (427, 47516), (854, 23758), (1697, 11956), (1708, 11879), (2989, 6788), (3394, 5978)]