20723828

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2531}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 38283840

約数和(自身を除く): 17560012

約数列:

[1, 2, 4, 23, 46, 89, 92, 178, 356, 2047, 2531, 4094, 5062, 8188, 10124, 58213, 116426, 225259, 232852, 450518, 901036, 5180957, 10361914, 20723828]

約数ペア:

[(1, 20723828), (2, 10361914), (4, 5180957), (23, 901036), (46, 450518), (89, 232852), (92, 225259), (178, 116426), (356, 58213), (2047, 10124), (2531, 8188), (4094, 5062)]