21334915

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 11013245

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1559, 1955, 2737, 7795, 10913, 13685, 26503, 35857, 54565, 132515, 179285, 185521, 250999, 609569, 927605, 1254995, 3047845, 4266983, 21334915]

約数ペア:

[(1, 21334915), (5, 4266983), (7, 3047845), (17, 1254995), (23, 927605), (35, 609569), (85, 250999), (115, 185521), (119, 179285), (161, 132515), (391, 54565), (595, 35857), (805, 26503), (1559, 13685), (1955, 10913), (2737, 7795)]