21147396

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 51886464

約数和(自身を除く): 30739068

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 193, 276, 386, 397, 579, 772, 794, 1158, 1191, 1588, 2316, 2382, 4439, 4764, 8878, 9131, 13317, 17756, 18262, 26634, 27393, 36524, 53268, 54786, 76621, 109572, 153242, 229863, 306484, 459726, 919452, 1762283, 3524566, 5286849, 7049132, 10573698, 21147396]

約数ペア:

[(1, 21147396), (2, 10573698), (3, 7049132), (4, 5286849), (6, 3524566), (12, 1762283), (23, 919452), (46, 459726), (69, 306484), (92, 229863), (138, 153242), (193, 109572), (276, 76621), (386, 54786), (397, 53268), (579, 36524), (772, 27393), (794, 26634), (1158, 18262), (1191, 17756), (1588, 13317), (2316, 9131), (2382, 8878), (4439, 4764)]