19743812

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{113}}^1$

素因数の和:177

約数の個数: 54

約数和(自身を含む): 40437054

約数和(自身を除く): 20693242

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 113, 121, 209, 226, 242, 361, 418, 452, 484, 722, 836, 1243, 1444, 2147, 2299, 2486, 3971, 4294, 4598, 4972, 7942, 8588, 9196, 13673, 15884, 23617, 27346, 40793, 43681, 47234, 54692, 81586, 87362, 94468, 163172, 174724, 259787, 448723, 519574, 897446, 1039148, 1794892, 4935953, 9871906, 19743812]

約数ペア:

[(1, 19743812), (2, 9871906), (4, 4935953), (11, 1794892), (19, 1039148), (22, 897446), (38, 519574), (44, 448723), (76, 259787), (113, 174724), (121, 163172), (209, 94468), (226, 87362), (242, 81586), (361, 54692), (418, 47234), (452, 43681), (484, 40793), (722, 27346), (836, 23617), (1243, 15884), (1444, 13673), (2147, 9196), (2299, 8588), (2486, 7942), (3971, 4972), (4294, 4598)]