21288700

素因数分解:

$2^2\times 5^2\times {\mathrm{359}}^1\times {\mathrm{593}}^1$

素因数の和:966

約数の個数: 36

約数和(自身を含む): 46403280

約数和(自身を除く): 25114580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 359, 593, 718, 1186, 1436, 1795, 2372, 2965, 3590, 5930, 7180, 8975, 11860, 14825, 17950, 29650, 35900, 59300, 212887, 425774, 851548, 1064435, 2128870, 4257740, 5322175, 10644350, 21288700]

約数ペア:

[(1, 21288700), (2, 10644350), (4, 5322175), (5, 4257740), (10, 2128870), (20, 1064435), (25, 851548), (50, 425774), (100, 212887), (359, 59300), (593, 35900), (718, 29650), (1186, 17950), (1436, 14825), (1795, 11860), (2372, 8975), (2965, 7180), (3590, 5930)]