21390084

素因数分解:

$2^2\times 3^2\times {\mathrm{137}}^1\times {\mathrm{4337}}^1$

素因数の和:4484

約数の個数: 36

約数和(自身を含む): 54476604

約数和(自身を除く): 33086520

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 137, 274, 411, 548, 822, 1233, 1644, 2466, 4337, 4932, 8674, 13011, 17348, 26022, 39033, 52044, 78066, 156132, 594169, 1188338, 1782507, 2376676, 3565014, 5347521, 7130028, 10695042, 21390084]

約数ペア:

[(1, 21390084), (2, 10695042), (3, 7130028), (4, 5347521), (6, 3565014), (9, 2376676), (12, 1782507), (18, 1188338), (36, 594169), (137, 156132), (274, 78066), (411, 52044), (548, 39033), (822, 26022), (1233, 17348), (1644, 13011), (2466, 8674), (4337, 4932)]