20558956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4817}}^1$

素因数の和:4929

約数の個数: 24

約数和(自身を含む): 39661776

約数和(自身を除く): 19102820

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 4817, 9634, 19268, 52987, 105974, 211948, 467249, 934498, 1868996, 5139739, 10279478, 20558956]

約数ペア:

[(1, 20558956), (2, 10279478), (4, 5139739), (11, 1868996), (22, 934498), (44, 467249), (97, 211948), (194, 105974), (388, 52987), (1067, 19268), (2134, 9634), (4268, 4817)]