21464547

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 32928000

約数和(自身を除く): 11463453

約数列:

[1, 3, 13, 19, 39, 57, 83, 247, 249, 349, 741, 1047, 1079, 1577, 3237, 4537, 4731, 6631, 13611, 19893, 20501, 28967, 61503, 86203, 86901, 258609, 376571, 550373, 1129713, 1651119, 7154849, 21464547]

約数ペア:

[(1, 21464547), (3, 7154849), (13, 1651119), (19, 1129713), (39, 550373), (57, 376571), (83, 258609), (247, 86901), (249, 86203), (349, 61503), (741, 28967), (1047, 20501), (1079, 19893), (1577, 13611), (3237, 6631), (4537, 4731)]