21577935

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 35684352

約数和(自身を除く): 14106417

約数列:

[1, 3, 5, 15, 47, 127, 141, 235, 241, 381, 635, 705, 723, 1205, 1905, 3615, 5969, 11327, 17907, 29845, 30607, 33981, 56635, 89535, 91821, 153035, 169905, 459105, 1438529, 4315587, 7192645, 21577935]

約数ペア:

[(1, 21577935), (3, 7192645), (5, 4315587), (15, 1438529), (47, 459105), (127, 169905), (141, 153035), (235, 91821), (241, 89535), (381, 56635), (635, 33981), (705, 30607), (723, 29845), (1205, 17907), (1905, 11327), (3615, 5969)]