19921347

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{601}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 30051840

約数和(自身を除く): 10130493

約数列:

[1, 3, 9, 29, 87, 127, 261, 381, 601, 1143, 1803, 3683, 5409, 11049, 17429, 33147, 52287, 76327, 156861, 228981, 686943, 2213483, 6640449, 19921347]

約数ペア:

[(1, 19921347), (3, 6640449), (9, 2213483), (29, 686943), (87, 228981), (127, 156861), (261, 76327), (381, 52287), (601, 33147), (1143, 17429), (1803, 11049), (3683, 5409)]