21167691687

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{46691}}^1$

素因数の和:46925

約数の個数: 40

約数和(自身を含む): 32881440240

約数和(自身を除く): 11713748553

約数列:

[1, 3, 9, 27, 29, 81, 87, 193, 261, 579, 783, 1737, 2349, 5211, 5597, 15633, 16791, 46691, 50373, 140073, 151119, 420219, 453357, 1260657, 1354039, 3781971, 4062117, 9011363, 12186351, 27034089, 36559053, 81102267, 109677159, 243306801, 261329527, 729920403, 783988581, 2351965743, 7055897229, 21167691687]

約数ペア:

[(1, 21167691687), (3, 7055897229), (9, 2351965743), (27, 783988581), (29, 729920403), (81, 261329527), (87, 243306801), (193, 109677159), (261, 81102267), (579, 36559053), (783, 27034089), (1737, 12186351), (2349, 9011363), (5211, 4062117), (5597, 3781971), (15633, 1354039), (16791, 1260657), (46691, 453357), (50373, 420219), (140073, 151119)]