31987143

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{7451}}^1$

素因数の和:7516

約数の個数: 20

約数和(自身を含む): 48691368

約数和(自身を除く): 16704225

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 7451, 22353, 67059, 201177, 394903, 603531, 1184709, 3554127, 10662381, 31987143]

約数ペア:

[(1, 31987143), (3, 10662381), (9, 3554127), (27, 1184709), (53, 603531), (81, 394903), (159, 201177), (477, 67059), (1431, 22353), (4293, 7451)]