21375963

素因数分解:

$3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1091}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 35433216

約数和(自身を除く): 14057253

約数列:

[1, 3, 7, 9, 21, 63, 311, 933, 1091, 2177, 2799, 3273, 6531, 7637, 9819, 19593, 22911, 68733, 339301, 1017903, 2375107, 3053709, 7125321, 21375963]

約数ペア:

[(1, 21375963), (3, 7125321), (7, 3053709), (9, 2375107), (21, 1017903), (63, 339301), (311, 68733), (933, 22911), (1091, 19593), (2177, 9819), (2799, 7637), (3273, 6531)]