18656979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 28975104

約数和(自身を除く): 10318125

約数列:

[1, 3, 11, 23, 33, 47, 69, 141, 253, 517, 523, 759, 1081, 1551, 1569, 3243, 5753, 11891, 12029, 17259, 24581, 35673, 36087, 73743, 132319, 270391, 396957, 565363, 811173, 1696089, 6218993, 18656979]

約数ペア:

[(1, 18656979), (3, 6218993), (11, 1696089), (23, 811173), (33, 565363), (47, 396957), (69, 270391), (141, 132319), (253, 73743), (517, 36087), (523, 35673), (759, 24581), (1081, 17259), (1551, 12029), (1569, 11891), (3243, 5753)]