21243645

素因数分解:

$3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1033}}^1$

素因数の和:1501

約数の個数: 24

約数和(自身を含む): 36938616

約数和(自身を除く): 15694971

約数列:

[1, 3, 5, 9, 15, 45, 457, 1033, 1371, 2285, 3099, 4113, 5165, 6855, 9297, 15495, 20565, 46485, 472081, 1416243, 2360405, 4248729, 7081215, 21243645]

約数ペア:

[(1, 21243645), (3, 7081215), (5, 4248729), (9, 2360405), (15, 1416243), (45, 472081), (457, 46485), (1033, 20565), (1371, 15495), (2285, 9297), (3099, 6855), (4113, 5165)]